Microcosm of London Plate 088 - Trinity House edited

The Corporation of Trinity House of Deptford Strond, also known as Trinity House (and formally as The Master, Wardens and Assistants of the Guild Fraternity or Brotherhood of the most glorious and undivided Trinity and of St Clement in the Parish of Deptford Strond in the County of Kent), is the official authority for

lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lens (optics), lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways. Ligh ...

s in

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

Wales Wales ( ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by the Irish Sea to the north and west, England to the England–Wales border, east, the Bristol Channel to the south, and the Celtic ...

, the

Channel Islands The Channel Islands are an archipelago in the English Channel, off the French coast of Normandy. They are divided into two Crown Dependencies: the Jersey, Bailiwick of Jersey, which is the largest of the islands; and the Bailiwick of Guernsey, ...

and

Gibraltar Gibraltar ( , ) is a British Overseas Territories, British Overseas Territory and British overseas cities, city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the A ...

. Trinity House is also responsible for the provision and maintenance of other navigational aids, such as

lightvessel A lightvessel, or lightship, is a ship that acts as a lighthouse. It is used in waters that are too deep or otherwise unsuitable for lighthouse construction. Although some records exist of fire beacons being placed on ships in Roman times, the ...

buoy A buoy (; ) is a buoyancy, floating device that can have many purposes. It can be anchored (stationary) or allowed to drift with ocean currents. History The ultimate origin of buoys is unknown, but by 1295 a seaman's manual referred to navig ...

s, and maritime radio/satellite communication systems. It is also an official

deep sea The deep sea is broadly defined as the ocean depth where light begins to fade, at an approximate depth of or the point of transition from continental shelves to continental slopes. Conditions within the deep sea are a combination of low tempe ...

pilotage Piloting or pilotage is the process of navigating on water or in the air using fixed points of reference on the sea or on land, usually with reference to a nautical chart or aeronautical chart to obtain a fix of the position of the vessel or air ...

authority Authority is commonly understood as the legitimate power of a person or group of other people. In a civil state, ''authority'' may be practiced by legislative, executive, and judicial branches of government,''The New Fontana Dictionary of M ...

, providing expert navigators for ships trading in

Northern Europe The northern region of Europe has several definitions. A restrictive definition may describe northern Europe as being roughly north of the southern coast of the Baltic Sea, which is about 54th parallel north, 54°N, or may be based on other ge ...

an waters. Trinity House is also a

maritime Maritime may refer to: Geography * Maritime Alps, a mountain range in the southwestern part of the Alps * Maritime Region, a region in Togo * Maritime Southeast Asia * The Maritimes, the Canadian provinces of Nova Scotia, New Brunswick, and Princ ...

charity Charity may refer to: Common meanings * Charitable organization or charity, a non-profit organization whose primary objectives are philanthropy and social well-being of persons * Charity (practice), the practice of being benevolent, giving and sha ...

, disbursing funds for the welfare of retired seamen, the training of young cadets and the promotion of safety at sea. For the financial year ending in March 2024, it spent approximately £12.3million in furtherance of its charitable objectives. Funding for the work of the lighthouse service comes from "

light dues Light dues are the charges levied on ships for the maintenance of lighthouses and other aids to navigation. British Isles Light dues are levied on commercial vessels and larger pleasure boats calling at ports in the British Isles and paid into th ...

" levied on commercial vessels calling at

port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Hamburg, Manch ...

s in the

British Isles The British Isles are an archipelago in the Atlantic Ocean, North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner Hebrides, Inner and Outer Hebr ...

, based on their net registered tonnage. The rate is set by the

Department for Transport The Department for Transport (DfT) is a Departments of the Government of the United Kingdom, ministerial department of the Government of the United Kingdom. It is responsible for the English transport network and a limited number of transport ...

, and reviewed annually. Funding for the maritime charity is generated separately. The Corporation was founded in 1514, its first Master being

Sir Thomas Spert Vice-Admiral of England Sir Thomas Spert (spelled in some records as Pert) (died December 1541) was a mariner who reached the rank of vice admiral in service to King Henry VIII of England. He was sailing master of the flagships ''Mary Rose'' an ...

sailing master The master, or sailing master, is a historical rank for a naval Officer (armed forces), officer trained in and responsible for the navigation of a sailing ship, sailing vessel. In the Royal Navy, the master was originally a warrant officer who ...

of Henry VIII's

flagship A flagship is a vessel used by the commanding officer of a group of navy, naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically ...

Mary Rose The ''Mary Rose'' was a carrack in the English Tudor navy of Henry VIII of England, King Henry VIII. She was launched in 1511 and served for 34 years in several wars against France, Scotland, and Brittany. After being substantially rebuilt in ...

'' and of ''

Henry Grace à Dieu ''Henry Grace à Dieu'' ("Henry, Thanks be to God"), also known as ''Great Harry'', was an English carrack or " great ship" of the King's Fleet in the 16th century, and in her day the largest warship in the world. Contemporary with ''Mary Ros ...

.''

History

The corporation came into being in 1514 by

Royal Charter A royal charter is a formal grant issued by a monarch under royal prerogative as letters patent. Historically, they have been used to promulgate public laws, the most famous example being the English Magna Carta (great charter) of 1215, but ...

granted by

Henry VIII Henry VIII (28 June 149128 January 1547) was King of England from 22 April 1509 until his death in 1547. Henry is known for his Wives of Henry VIII, six marriages and his efforts to have his first marriage (to Catherine of Aragon) annulled. ...

under the name "The Master, Wardens, and Assistants of the Guild, Fraternity, or Brotherhood of the most glorious and undivided Trinity, and of St Clement in the Parish of Deptford

Strond Strond is a former village in the north of the town of Klaksvík on the sound of Haraldssund in the Faroe Islands. It is situated on Borðoy on the causeway connecting Borðoy and Kunoy. Since 1930 no people have lived there. There is a power ...

in the County of Kent." The charter came as a result of a petition put forward on 19 March 1513 by a

guild A guild ( ) is an association of artisans and merchants who oversee the practice of their craft/trade in a particular territory. The earliest types of guild formed as organizations of tradespeople belonging to a professional association. They so ...

Deptford Deptford is an area on the south bank of the River Thames in southeast London, in the Royal Borough of Greenwich and London Borough of Lewisham. It is named after a Ford (crossing), ford of the River Ravensbourne. From the mid 16th century ...

-based

mariner A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. While the term ''sailor' ...

s. They were troubled by the poor conduct of unregulated pilots on the

Thames The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after th ...

and asked the king for licence to regulate pilotage.

, Vice-Admiral of

Henry Henry may refer to: People and fictional characters * Henry (given name), including lists of people and fictional characters * Henry (surname) * Henry, a stage name of François-Louis Henry (1786–1855), French baritone Arts and entertainmen ...

's flagship ''

'' and the ''

'' was elected the first master; the corporation's name derives from the

Holy Trinity The Trinity (, from 'threefold') is the Christian doctrine concerning the nature of God, which defines one God existing in three, , consubstantial divine persons: God the Father, God the Son (Jesus Christ) and God the Holy Spirit, three ...

and St. Clement, the patron saint of mariners. As John Whormby,

Clerk A clerk is a white-collar worker who conducts record keeping as well as general office tasks, or a worker who performs similar sales-related tasks in a retail environment. The responsibilities of clerical workers commonly include Records managem ...

to the Corporation, wrote in 1746, their general business was: Elizabeth I's ( 8 Eliz. 1. c. 13) enabled Trinity House: With the increasing number of ships lost along the

Newcastle Newcastle usually refers to: *Newcastle upon Tyne, a city and metropolitan borough in Tyne and Wear, England, United Kingdom *Newcastle-under-Lyme, a town in Staffordshire, England, United Kingdom *Newcastle, New South Wales, a metropolitan area ...

London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...

coal route, Trinity House established the Lowestoft Lighthouse in 1609, a pair of wooden towers with candle illuminants. Until the late 18th century, candle, coal, or wood fires were used as lighthouse illuminants, improved in 1782 with the circular-wick oil-burning

Argand lamp The Argand lamp is a type of oil lamp invented in 1780 by Aimé Argand. Its output is 6 to 10 candelas, brighter than that of earlier lamps. Its more complete combustion of the candle wick and oil than in other lamps required much less frequen ...

, the first ‘catoptric’ mirrored reflector in 1777, and

Fresnel Augustin-Jean Fresnel (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton's corpuscular th ...

’s ‘dioptric’ lens system in 1823.

The Nore The Nore is a long bank of sand and silt running along the south-centre of the final narrowing of the Thames Estuary, England. Its south-west is the very narrow Nore Sand. Just short of the Nore's easternmost point where it fades into the cha ...

lightship A lightvessel, or lightship, is a ship that acts as a lighthouse. It is used in waters that are too deep or otherwise unsuitable for lighthouse construction. Although some records exist of fire beacons being placed on ships in Roman times, the ...

was established as the world's first floating light in 1732. Trinity House took over the management of all public buoys in the kingdom in 1594 from the Lord High Admiral. A royal warrant, dated 11 June 1594, granted the corporation the right of: By 1847, revenue collected from this source was £11,000 to £12,000 per year. In 1836, Trinity House accepted powers in the

Lighthouses Act 1836 A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways. Lighthouses mark da ...

( 6 & 7 Will. 4. c. 79) to levy out the last private lighthouse owners and began refurbishing and upgrading its lighthouse estate. In 1803, the corporation established the Blackwall Depot as a buoy workshop, and six district depots were later established at Harwich, Great Yarmouth, East Cowes, Penzance, Holyhead and Swansea. In December 2002, Trinity House announced that the Great Yarmouth, Penzance and East Cowes depots would close. Today, Trinity House's operational headquarters are based at

Harwich Harwich is a town in Essex, England, and one of the Haven ports on the North Sea coast. It is in the Tendring district. Nearby places include Felixstowe to the north-east, Ipswich to the north-west, Colchester to the south-west and Clacton-o ...

, supported by depots in

Swansea Swansea ( ; ) is a coastal City status in the United Kingdom, city and the List of urban areas in the United Kingdom, second-largest city of Wales. It forms a Principal areas of Wales, principal area, officially known as the City and County of ...

and a flight operations base at St Just in

Cornwall Cornwall (; or ) is a Ceremonial counties of England, ceremonial county in South West England. It is also one of the Celtic nations and the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, ...

. Its operations are also supported by three vessels; the two large tenders THV ''Patricia'' and THV ''Galatea'', and the Rapid Intervention Vessel THV ''Alert''. It retains a small secretariat based at

Tower Hill Tower Hill is the area surrounding the Tower of London in the London Borough of Tower Hamlets. It is infamous for the public execution of high status prisoners from the late 14th to the mid 18th century. The execution site on the higher gro ...

. During the First World War, the corporation served a number of functions: it buoyed shipping lanes and naval operations, moved lightvessels, and laid hundreds of buoys. During the Second World War, Trinity House kept sea lanes marked and lighted for Allied convoys. The Pilotage Service guided ships to their ports under hazardous conditions; at the time of the

Dunkirk evacuation The Dunkirk evacuation, codenamed Operation Dynamo and also known as the Miracle of Dunkirk, or just Dunkirk, was the evacuation of more than 338,000 Allied soldiers during the Second World War from the beaches and harbour of Dunkirk, in the ...

, a number of pilots helped in piloting vessels to and from the beaches. On the night of 29 December 1940, Trinity House was destroyed by the most severe of the air attacks on London; the interiors were completely gutted and many archives and treasures were lost. (The restored

building A building or edifice is an enclosed Structure#Load-bearing, structure with a roof, walls and window, windows, usually standing permanently in one place, such as a house or factory. Buildings come in a variety of sizes, shapes, and functions, a ...

was reopened by

Elizabeth II Elizabeth II (Elizabeth Alexandra Mary; 21 April 19268 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until Death and state funeral of Elizabeth II, her death in 2022. ...

on 21 October 1953.) In preparation for the

D-Day The Normandy landings were the landing operations and associated airborne operations on 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during the Second World War. Codenamed Operation Neptune and often referred to as ...

landings Landing is the last part of a flight, where a flying animal, aircraft, or spacecraft returns to the ground. When the flying object returns to water, the process is called alighting, although it is commonly called "landing", "touchdown" or "spla ...

on 6 June 1944, Trinity House laid 73 lighted buoys and two lightvessels to indicate a safe route for landing craft. Trinity House pilots were responsible for all commercial vessels involved and many of the service vessels. In the month following D-Day, nearly 3,000 vessels were handled by 88 river pilots and nearly 2,000 ships by 115 sea pilots working day and night. In 1969, Trinity House initiated the debut of helicopter reliefs to and from offshore lighthouses, succeeding the boat reliefs. These had been susceptible to being delayed by months during inclement weather. Trinity House played a major part in the design of the IALA Maritime Buoyage System, laying the first buoy off

Dover Dover ( ) is a town and major ferry port in Kent, southeast England. It faces France across the Strait of Dover, the narrowest part of the English Channel at from Cap Gris Nez in France. It lies southeast of Canterbury and east of Maidstone. ...

, watched over by representatives of 16 nations on 15 April 1977. By the 1960s, Trinity House licensed about 500 pilots, of whom about 350 were in the London District, handling an estimated 60% of the nation's piloted tonnage. The

Pilotage Act 1987 The Pilotage Act 1987 (c. 21) is a UK act of Parliament that governs the operation of maritime pilotage. The act repealed the previous pilotage legislation in its entirety, the Pilotage Act 1983 (c. 21), which itself had repealed the Pilotag ...

authorized Trinity House to pass its District Pilotage responsibilities to various local harbour authorities, becoming instead a licensing authority for deep sea pilotage. The completion of the lighthouse automation programme came with a ceremony held at the

North Foreland Lighthouse North Foreland is a chalk headland on the Kent coast of southeast England, specifically in Broadstairs. With the rest of Broadstairs and part of Ramsgate it is the eastern side of Kent's largest peninsula, the Isle of Thanet. It presents a b ...

on 26 November 1998, attended by the last six keepers and master,

Prince Philip, Duke of Edinburgh Prince Philip, Duke of Edinburgh (born Prince Philip of Greece and Denmark, later Philip Mountbatten; 10 June 19219 April 2021), was the husband of Queen Elizabeth II. As such, he was the consort of the British monarch from h ...

. On 9 June 1989, the last crewed lightvessel was towed from the Channel lightvessel station to Harwich.

Richard Woodman Captain Richard Martin Woodman LVO MNM (10 March 1944 – 2 October 2024) was an English merchant navy officer, novelist and naval historian. Woodman served at sea mainly working for Trinity House and retired in 1997 from a 37-year nautical c ...

served as elder brethren and member of the court from 2000 until his death in 2024. In 2011, the Princess Royal succeeded her father as Master. She was aboard ''Trinity House Motor Boat No.1'' during the

Diamond Jubilee A diamond jubilee celebrates the 60th anniversary of a significant event related to a person (e.g. accession to the throne or wedding, among others) or the 60th anniversary of an institution's founding. The term is also used for 75th annivers ...

pageant Pageant(s) or The Pageant(s) may refer to: Events * Procession or ceremony in elaborate costume * Beauty pageant, or beauty contest * List of pageants of the Church of Jesus Christ of Latter-day Saints * Medieval pageant, a narrative medieval pro ...

. In 2014, the

Royal Mint The Royal Mint is the United Kingdom's official maker of British coins. It is currently located in Llantrisant, Wales, where it moved in 1968. Operating under the legal name The Royal Mint Limited, it is a limited company that is wholly ow ...

issued a two pound coin commemorating the 500th anniversary of the grant of Trinity House's royal charter. From 2011 to 2024, Captain Ian McNaught, a Merchant Navy Officer served as Deputy Master. In 2024, he was succeeded as Deputy Master and Chief Executive by Rear-Admiral Iain Lower.

Master of the Corporation

The Master of the Corporation (now an

honorary title A title is one or more words used before or after a person's name, in certain contexts. It may signify their generation, official position, military rank, professional or academic qualification, or nobility. In some languages, titles may be ins ...

) is

Anne, Princess Royal Anne, Princess Royal (Anne Elizabeth Alice Louise; born 15 August 1950) is a member of the British royal family. She is the second child and only daughter of Queen Elizabeth II and Prince Philip, Duke of Edinburgh, and the only sister of King ...

. Previous Masters of Trinity House include

;

Vice-Admiral Vice admiral is a senior naval flag officer rank, usually equivalent to lieutenant general and air marshal. A vice admiral is typically senior to a rear admiral and junior to an admiral. Australia In the Royal Australian Navy, the rank of vic ...

, master of the warship ''

'' under

; the diarist

Samuel Pepys Samuel Pepys ( ; 23 February 1633 – 26 May 1703) was an English writer and Tories (British political party), Tory politician. He served as an official in the Navy Board and Member of Parliament (England), Member of Parliament, but is most r ...

;

William Pitt the Younger William Pitt (28 May 1759 – 23 January 1806) was a British statesman who served as the last prime minister of Kingdom of Great Britain, Great Britain from 1783 until the Acts of Union 1800, and then first Prime Minister of the United Kingdom, p ...

;

Field Marshal Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, senior to the general officer ranks. Usually, it is the highest rank in an army (in countries without the rank of Generalissimo), and as such, few persons a ...

the Duke of Wellington Field Marshal Arthur Wellesley, 1st Duke of Wellington (; 1 May 1769 – 14 September 1852) was a British Army officer and statesman who was one of the leading military and political figures in Britain during the late 18th and early 19th cent ...

; and

Admiral Admiral is one of the highest ranks in many navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force. Admiral is ranked above vice admiral and below admiral of ...

Sir William Penn (father of

William Penn William Penn ( – ) was an English writer, religious thinker, and influential Quakers, Quaker who founded the Province of Pennsylvania during the British colonization of the Americas, British colonial era. An advocate of democracy and religi ...

, founder of

Pennsylvania Pennsylvania, officially the Commonwealth of Pennsylvania, is a U.S. state, state spanning the Mid-Atlantic (United States), Mid-Atlantic, Northeastern United States, Northeastern, Appalachian, and Great Lakes region, Great Lakes regions o ...

). Other prominent individuals in Britain, often connected with commercial shipping or

the Admiralty The Admiralty was a department of the Government of the United Kingdom that was responsible for the command of the Royal Navy. Historically, its titular head was the Lord High Admiral – one of the Great Officers of State. For much of its h ...

, have been associated with Trinity House, including

Winston Churchill Sir Winston Leonard Spencer Churchill (30 November 1874 – 24 January 1965) was a British statesman, military officer, and writer who was Prime Minister of the United Kingdom from 1940 to 1945 (Winston Churchill in the Second World War, ...

. He gained his status as an Elder Brother of Trinity House as a result of his position as

First Lord of the Admiralty First Lord of the Admiralty, or formally the Office of the First Lord of the Admiralty, was the title of the political head of the English and later British Royal Navy. He was the government's senior adviser on all naval affairs, responsible f ...

before and during the

First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...

. Often, especially on naval-related forays during the

Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, Churchill was seen wearing the Trinity House cap or uniform. Churchill also had a Trinity House vessel (THV) named after him, THV ''Winston Churchill''.

Governance

Trinity House is ruled by a

court A court is an institution, often a government entity, with the authority to adjudicate legal disputes between Party (law), parties and Administration of justice, administer justice in Civil law (common law), civil, Criminal law, criminal, an ...

of thirty-one Elder Brethren, presided over by its Master. These are appointed from 300 Younger Brethren who act as advisors and perform other duties as needed. The Younger Brethren are appointed from lay people with maritime experience, mainly

naval officer An officer is a person who holds a position of authority as a member of an armed force or uniformed service. Broadly speaking, "officer" means a commissioned officer, a non-commissioned officer (NCO), or a warrant officer. However, absent ...

s and ships' masters, but also

harbourmaster A harbourmaster (or harbormaster, see spelling differences) is an official responsible for enforcing the regulations of a particular harbour or port, in order to ensure the safety of navigation, the security of the harbour and the correct opera ...

pilot An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its Aircraft flight control system, directional flight controls. Some other aircrew, aircrew members, such as navigators or flight engineers, are al ...

yacht A yacht () is a sail- or marine propulsion, motor-propelled watercraft made for pleasure, cruising, or racing. There is no standard definition, though the term generally applies to vessels with a cabin intended for overnight use. To be termed a ...

smen, and anyone with useful experience.

Headquarters of the Corporation

The

headquarters Headquarters (often referred to as HQ) notes the location where most or all of the important functions of an organization are coordinated. The term is used in a wide variety of situations, including private sector corporations, non-profits, mil ...

of the Corporation are the present Trinity House, which was designed by architect

Samuel Wyatt Samuel Wyatt (8 September 1737 – 8 February 1807) was an English architect and engineer. A member of the Wyatt family, which included several notable 18th- and 19th-century English architects, his work was primarily in a neoclassical style. C ...

and built in 1796. It has a suite of five state rooms with views over Trinity Square, the

Tower of London The Tower of London, officially His Majesty's Royal Palace and Fortress of the Tower of London, is a historic citadel and castle on the north bank of the River Thames in central London, England. It lies within the London Borough of Tower Hamle ...

and the

River Thames The River Thames ( ), known alternatively in parts as the The Isis, River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the Longest rivers of the United Kingdom, s ...

Trinity High Water

Trinity High Water (or High Water, Trinity Standard), abbreviated T.H.W., was a

vertical datum In geodesy, surveying, hydrography and navigation, vertical datum or altimetric datum is a reference coordinate surface used for vertical positions, such as the elevations of Earth-bound features (terrain, bathymetry, water level, and built stru ...

used for legal purposes in the River Thames and informally over a much wider area. Though not thus defined, it was about above mean

sea level Mean sea level (MSL, often shortened to sea level) is an mean, average surface level of one or more among Earth's coastal Body of water, bodies of water from which heights such as elevation may be measured. The global MSL is a type of vertical ...

. The concept had its origin in the London Dock Act 1800 ( 39 & 40 Geo. 3. c. xlvii) which authorised the making of the Wapping basin of the

London Docks The London Docks were one of several sets of docks in the historic Port of London. They were constructed in Wapping, downstream from the City of London between 1799 and 1815, at a cost exceeding £5½ million. Traditionally ships had d ...

and specified its minimum depth ''ie.'' over the sill. At that time there was no

Ordnance Datum An ordnance datum (OD) is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps. A spot height may be expressed as above ordnance datum (AOD). Usually mean sea level (MSL) at a particular place is used for the d ...

or other accepted vertical benchmark. Therefore, the 1800 Act defined the benchmark for this dock as "the level of the river at low-water mark". Since opinions about this might vary, it added: Accordingly, Trinity House — in the person of

Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...

Joseph Huddart Joseph Huddart FRS (1741–1816) was a British hydrographer, engineer and inventor. He surveyed harbours and coasts but made a fortune from improving the design and manufacture of rope. He was highly regarded in his time, and his likeness feat ...

— set a stone in the external wing wall of the Hermitage Entrance to the

. It was inscribed Similar stones were afterwards set for Wapping and Shadwell entrances. This established a benchmark which was supposedly extended for further purposes ''eg.'' the sill heights of other docks and for high water also. Trinity High Water Mark was much used as a datum in

for legal purposes. It was required to be marked on all drawings of property adjacent to the river when submitted to the

Thames Conservancy The Thames Conservancy (formally the Conservators of the River Thames) was a body responsible for the management of River Thames, that river in England. It was founded in 1857 to replace the jurisdiction of the City of London up to Staines-upon-T ...

. As another example, the minimum height of river walls were specified in feet and inches above T.H.W. The benchmark was used in other contexts, such as "Luton is 400 feet above Trinity high-water"; the elevations of water reservoirs; depths in the Geological Survey (London Basin); the depth of an archaeological find; and for railway elevations. Despite the importance of the Trinity Standard benchmark for legal purposes, it appears that there were discrepancies, some of them grave. Inconsistent standards purporting to be T.H.W. existed. Some stones set by Captain Huddart afterwards could not be found. Eventually, it was deemed by the

Port of London Act 1968 The Port of London Authority (PLA) is a self-funding public trust established on 31 March 1909 in accordance with the Port of London Act 1908 to govern the Port of London. Its responsibility extends over the Tideway of the River Thames and its ...

to be a level having a value of above

Ordnance Datum Newlyn Ordnance may refer to: Military and defense *Materiel in military logistics, including weapons, ammunition, vehicles, and maintenance tools and equipment *Artillery *Artillery shells *Aircraft ordnance, weapons carried by and used by an aircraft ...

. and thus the connection with the Trinity House marker stones was abandoned.

Nautical assessors

In legal cases involving issues of

navigation Navigation is a field of study that focuses on the process of monitoring and controlling the motion, movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navig ...

seamanship Seamanship is the skill, art, competence (human resources), competence, and knowledge of operating a ship, boat or other craft on water. The'' Oxford Dictionary of English, Oxford Dictionary'' states that seamanship is "The skill, techniques, o ...

''eg.'' collisions at sea, Elder Brethren of Trinity House act as expert nautical advisors to the

Admiralty Court Admiralty courts, also known as maritime courts, are courts exercising jurisdiction over all admiralty law, maritime contracts, torts, injuries, and offenses. United Kingdom England and Wales Scotland The Scottish court's earliest records, ...

. Usually, two Elder Brethren sit with the Admiralty judge. Their function is not to decide the case themselves, but to advise the presiding judge about the practicalities of seamanship and ship handling. When this happens, the parties are not allowed to produce expert witnesses of their own without a special reason, since the court considers itself to be well enough advised already. But if one of the colliding ships was a Trinity House vessel, Elder Brethren cannot be employed. Elder Brethren may perform the same functions in appeals. In a 2020 case about a multiple ship collision in the

Suez Canal The Suez Canal (; , ') is an artificial sea-level waterway in Egypt, Indo-Mediterranean, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez and dividing Africa and Asia (and by extension, the Sinai Peninsula from the rest ...

the Admiralty judge wrote a 306-paragraph judgment ending thus:

Operational responsibilities and role of the Corporation

Trinity House has three main functions: *It is the

General Lighthouse Authority A general lighthouse authority (GLA) is one of three agencies primarily responsible for aids to navigation in the United Kingdom and the Republic of Ireland. They are divided into regions as follows: *Trinity House: England & Wales, Channel Islan ...

for England, Wales, the Channel Islands and Gibraltar, responsible for a range of general aids to navigation, 'signs of the sea', from

s to

radar beacon Radar beacon (short: racon) is – according to ''article 1.103'' of the International Telecommunication Union, International Telecommunication Union's (ITU) ITU Radio Regulations (RR) – defined as "A transmitter-receiver associated with a fi ...

s. *It is a

charitable organisation A charitable organization or charity is an organization whose primary objectives are philanthropy and social well-being (e.g. educational, Religion, religious or other activities serving the public interest or common good). The legal definitio ...

dedicated to the safety, welfare and training of mariners. *It is a Deep Sea Pilotage Authority, licensing expert navigators to act as deep sea pilots for ships trading in Northern European waters. The Corporation also inspects buoys provided by local harbour authorities. It no longer provides local pilots for entering ports. Contrary to popular belief, Trinity House is not (and never has been) part of

HM Coastguard His Majesty's Coastguard (HMCG) is the section of the Maritime and Coastguard Agency responsible, through the Secretary of State for Transport to Parliament, for the initiation and co-ordination of all maritime search and rescue (SAR) within th ...

, although it does work closely with HM

Maritime and Coastguard Agency The Maritime and Coastguard Agency (MCA) is an executive agency of the United Kingdom that is responsible for implementing British and international maritime law and safety policy. It works to prevent the loss of lives at sea and to prevent mar ...

. Trinity House's activities as a lighthouse authority are financed from "

" levied on commercial shipping calling at ports in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...

Assets

Trinity House Flag on Portland Bill Lighthouse

Lighthouses in England This is a list of lighthouses in England. It includes lighthouses which are no longer in use as a light but are still standing. It also includes some of the harbour and pier-head lights around the country. Details of several lighthouses and li ...

Lightvessels in the United Kingdom The history of the many lightvessel stations of Great Britain goes back over 250 years to the placement of the world's first lightship at the Nore in the early 18th century. A lightvessel station is a named position at which a lightvessel was pl ...

Lighthouses

Trinity House maintains 65 lighthouses ranging from isolated rock towers like the Eddystone to mainland towers like

Southwold lighthouse Southwold Lighthouse is a lighthouse operated by Trinity House in the centre of Southwold in Suffolk, England. It stands on the North Sea coast, acting as a warning light for shipping passing along the east coast and as a guide for vessels navig ...

. All Trinity House lighthouses have been automated since November 1998, when the UK's last staffed lighthouse,

North Foreland North Foreland is a chalk headland on the Kent coast of southeast England, specifically in Broadstairs. With the rest of Broadstairs and part of Ramsgate it is the eastern side of Kent's largest peninsula, the Isle of Thanet. It presents a b ...

Kent Kent is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Essex across the Thames Estuary to the north, the Strait of Dover to the south-east, East Sussex to the south-west, Surrey to the west, and Gr ...

, was converted to automatic operation. Lighthouse automation began as long ago as 1910, thanks to an invention of

Gustaf Dalén Nils Gustaf Dalén (; 30 November 1869 – 9 December 1937) was a Swedish engineer and inventor who received the Nobel Prize in Physics in 1912 "for his invention of Sun valve, automatic regulators for use in conjunction with gas accumulators fo ...

, whose

sun valve A sun valve (''Swedish: solventil'', "solar valve") is a flow control valve that automatically shuts off gas flow during daylight. It earned its inventor Gustaf Dalén the 1912 Nobel Prize in Physics. Subsequently other variants of sun valve were ...

was fitted in a number of lighthouses powered by

acetylene gas Acetylene (systematic name: ethyne) is a chemical compound with the formula and structure . It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure for ...

. Its vital component was a black metal rod suspended vertically and connected to the gas supply which, as it absorbed the sun's heat, the rod expanded downwards, cutting off the gas during the day. Automation in the modern context began in the early 1980s, made possible firstly by the construction of lantern-top helipads at remote rock lighthouses, to enable the rapid transfer of technicians to a lighthouse in the event of a breakdown, and secondly, by the development of remote control technology, which enables all lighthouses and lightvessels to be monitored and controlled from the Trinity House Operations and Planning Centre at Harwich, Essex. The other General Lighthouse Authorities elsewhere in the

are: *

Commissioners of Irish Lights The Commissioners of Irish Lights (), often shortened to Irish Lights or CIL, is the body that serves as the general lighthouse authority for Northern Ireland and the Republic of Ireland and their adjacent seas and islands. As the lighthouse a ...

— Ireland (

Northern Ireland Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...

and

Republic of Ireland Ireland ( ), also known as the Republic of Ireland (), is a country in Northwestern Europe, north-western Europe consisting of 26 of the 32 Counties of Ireland, counties of the island of Ireland, with a population of about 5.4 million. ...

) *

Northern Lighthouse Board The Northern Lighthouse Board (NLB) is the general lighthouse authority for Scotland and the Isle of Man. It is a non-departmental public body responsible for ocean, marine navigation aids around coastal areas. History The NLB was formed by ...

(formerly Commissioners of Northern Lights) —

Scotland Scotland is a Countries of the United Kingdom, country that is part of the United Kingdom. It contains nearly one-third of the United Kingdom's land area, consisting of the northern part of the island of Great Britain and more than 790 adjac ...

and

Man A man is an adult male human. Before adulthood, a male child or adolescent is referred to as a boy. Like most other male mammals, a man's genome usually inherits an X chromosome from the mother and a Y chromosome from the f ...

Vessels

Ships

Trinity House vessels have the

ship prefix A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel's mode of propulsion, purpose, or ownership/na ...

THV. three such vessels operate around the coast of England, Wales and the Channel Islands. * THV ''Patricia'' (1982) is an multi-functional tender that carries out maintenance work on navigation aids, towing, wreck location and marking. She has a helicopter-landing pad, a 20-tonne main crane and 28-tonne bollard pull and towing

winch A winch is a mechanical device that is used to pull in (wind up) or let out (wind out) or otherwise adjust the tension (physics), tension of a rope or wire rope (also called "cable" or "wire cable"). In its simplest form, it consists of a Bobb ...

. * THV ''Alert'' (2006) is a Rapid Intervention Vessel, able to respond rapidly to maritime incidents off the southeast coast of England. She is capable of buoy handling, wreck marking and towing. Fitted with multibeam and side-scan hydrographic surveying capability and DP1 dynamic positioning, ''Alert'' can be utilised as a research platform with a large working deck. * THV ''Galatea'' (2007) is an multi-functional tender with a helicopter-landing pad. Fitted with a range of high specification survey equipment and a 30-tonne capacity crane, azimuthing propellers, two 750 kW

bow thruster Manoeuvering thrusters (bow thrusters and stern thrusters) are transversal propulsion devices built into or mounted to either the Bow (watercraft), bow or stern (front or back, respectively) of a ship or boat to make it more manoeuvrable. Bow th ...

s and DP2 dynamic positioning, ''Galatea'' replaced the 1987-built THV ''Mermaid''.

Boats

The Corporation operates a number of small boats, mostly functioning as tenders to Trinity House vessels as described in the section above. The historic right of Trinity House to escort the

Sovereign ''Sovereign'' is a title that can be applied to the highest leader in various categories. The word is borrowed from Old French , which is ultimately derived from the Latin">-4; we might wonder whether there's a point at which it's appropriate to ...

when travelling by ship in

territorial waters Territorial waters are informally an area of water where a sovereign state has jurisdiction, including internal waters, the territorial sea, the contiguous zone, the exclusive economic zone, and potentially the extended continental shelf ( ...

is still exercised on ceremonial occasions. On the River Thames and inland waterways the duty is carried out by the vessel designated ''Trinity House No 1 Boat'', a name which designates any boat assigned to this duty; a tender of THV ''Galatea'' is used for such ceremonial duties. However, for the

Thames Diamond Jubilee Pageant The Thames Diamond Jubilee Pageant was a parade on 3 June 2012 of 670 boats on the Tideway of the River Thames in London as part of the celebrations of the Diamond Jubilee of Elizabeth II. The Queen, Prince Philip and other members of t ...

on 3 June 2012, this boat had the name "T.H. No 1 Boat" painted onto the bow (port and starboard) whilst carrying the Master (the Princess Royal) in the jubilee flotilla. On 8 November 2014, Trinity House entered a float for the annual

Lord Mayor's Show The Lord Mayor's Show is one of the best-known annual events in London as well as one of the longest-established, dating back to the 13th century. A new lord mayor is appointed every year, and the public parade that takes place as their inaugura ...

in the

City of London The City of London, also known as ''the City'', is a Ceremonial counties of England, ceremonial county and Districts of England, local government district with City status in the United Kingdom, city status in England. It is the Old town, his ...

, consisting of a heavy low-loader lorry, with the ''Trinity House No 1 Boat'' mounted on the low-loader trailer as an exhibit.

Property

As a charitable body, the corporation has owned a number of properties for benevolent purposes, chief among them the

estate Estate or The Estate may refer to: Law * Estate (law), a term in common law for a person's property, entitlements and obligations * Estates of the realm, a broad social category in the histories of certain countries. ** The Estates, representativ ...

at Newington in

south London South London is the southern part of Greater London, England, south of the River Thames. The region consists of the Districts of England, boroughs, in whole or in part, of London Borough of Bexley, Bexley, London Borough of Bromley, Bromley, Lon ...

(now rebranded as Trinity Village) and

almshouse An almshouse (also known as a bede-house, poorhouse, or hospital) is charitable housing provided to people in a particular community, especially during the Middle Ages. They were often built for the poor of a locality, for those who had held ce ...

s at

Mile End Mile End is an area in London, England and is located in the London Borough of Tower Hamlets. It is in East London and part of the East End of London, East End. It is east of Charing Cross. Situated on the part of the London-to-Colchester road ...

, and

Walmer Walmer is a town in the district of Dover, Kent, in England. Located on the coast, the parish of Walmer is south-east of Sandwich, Kent. The town's coastline and castle are popular amongst tourists. It has a population of 6,693 (2001), incre ...

; the last of these estates was built in 1958 and remains in use by the corporation today as one of two listed estates: one of predominantly residential buildings at Trinity Village in

Borough, London Southwark ( ) is a district of Central London situated on the south bank of the River Thames, forming the north-western part of the wider modern London Borough of Southwark. The district, which is the oldest part of South London, developed ...

; and a working farm, formerly Booth property, at

Goxhill __NOTOC__ Goxhill is a village and civil parish in North Lincolnshire, England. The population of the civil parish taken at the 2011 census was 2,290. It is situated east from Barton-upon-Humber and north-west from Immingham. Goxhill was par ...

Lincolnshire Lincolnshire (), abbreviated ''Lincs'', is a Ceremonial counties of England, ceremonial county in the East Midlands and Yorkshire and the Humber regions of England. It is bordered by the East Riding of Yorkshire across the Humber estuary to th ...

. The rents from these properties form a substantial part of the Corporation's income.

Other assets

Amongst other significant assets, Trinity House operates a

helicopter A helicopter is a type of rotorcraft in which Lift (force), lift and thrust are supplied by horizontally spinning Helicopter rotor, rotors. This allows the helicopter to VTOL, take off and land vertically, to hover (helicopter), hover, and ...

capable of landing on lighthouse and ship landing pads. From May 2011 to November 2015, the aircraft in principal use was an MD Helicopters MD Explorer 902 owned by Police Aviation Services (PAS) and operated under lease. Since December 2015 a

Eurocopter EC135 The Airbus Helicopters H135, formerly Eurocopter EC135, is a twin-engine civil light utility helicopter produced by Airbus Helicopters. It is capable of flight under instrument flight rules (IFR) and is outfitted with a digital automatic flig ...

G-GLAA owned and operated by PDG Aviation Services has fulfilled the role.

Ensign

The

Ensign Ensign most often refers to: * Ensign (flag), a flag flown on a vessel to indicate nationality * Ensign (rank), a navy (and former army) officer rank Ensign or The Ensign may also refer to: Places * Ensign, Alberta, Alberta, Canada * Ensign, Ka ...

of Trinity House is a

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies. * British national identity, the characteristics of British people and culture ...

Red Ensign The Red Ensign or Red Duster is the civil ensign of the United Kingdom. It is one of the British ensigns, and it is used either plain or defacement (flag), defaced with either a Glossary of vexillology#Flag elements, badge or a Glossary of v ...

defaced with the shield of the coat of arms (a

St George's Cross In heraldry, Saint George's Cross (or the Cross of Saint George) is a red cross on a white background, which from the Late Middle Ages became associated with Saint George, the military saint, often depicted as a crusader. Associated with ...

with a

sailing ship A sailing ship is a sea-going vessel that uses sails mounted on Mast (sailing), masts to harness the power of wind and propel the vessel. There is a variety of sail plans that propel sailing ships, employing Square rig, square-rigged or Fore-an ...

in each quarter). The Master and Deputy Master each have their own

differenced In heraldry, cadency is any systematic way to distinguish arms displayed by descendants of the holder of a coat of arms when those family members have not been granted arms in their own right. Cadency is necessary in heraldic systems in which ...

flag A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and fla ...

s. When escorting the Sovereign, Trinity House vessels may fly the

White Ensign The White Ensign, at one time called the St George's Ensign because of the simultaneous existence of a crossless version of the flag, is an ensign worn on British Royal Navy ships and shore establishments. It consists of a red St George's Cr ...

. File:Trinity House Flag (pre-1937).svg,

Banner A banner can be a flag or another piece of cloth bearing a symbol, logo, slogan or another message. A flag whose design is the same as the shield in a coat of arms (but usually in a square or rectangular shape) is called a banner of arms. Also, ...

(pre-1937) File:Trinity House Ensign (pre-1937).svg, Ensign (pre-1937) File:Trinity House Master's Flag RMG RP-32-3-4.jpg,

Master's A master's degree (from Latin ) is a postgraduate academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional prac ...

Flag A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and fla ...

(1901–37) File:Trinity House Flag.svg, Banner (1937–present) File:Trinity House Ensign.svg, Ensign (1937–present)

Notes

References

The Corporation of the Hull Trinity House, established 1369.The Newcastle Trinity House.europilots.org.uk
*"''A fortnight in Egypt at the opening of the Suez Canal''" London : Smith and Ebbs, 1869. Written by Captain Sir Frederick Arrow eputy Master of Trinity House

External links

Trinity House official websitePhotos of vessels

1685 Royal Charter of Trinity HouseTrinity Hospital, Mile End – Survey of London, Monograph 1
{{authority control 1514 establishments in England Grade I listed buildings in the City of London Department for Transport Lighthouse organizations National government buildings in London Non-departmental public bodies of the United Kingdom government Organisations based in the City of London Water transport in England Water transport in Wales Seafarers' Welfare Organizations