Caernarfon (; ) is a royal town,

community A community is a social unit (a group of living things) with commonality such as place, norms, religion, values, customs, or identity. Communities may share a sense of place situated in a given geographical area (e.g. a country, village, ...

and port in Gwynedd,

Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...

, with a population of 9,852 (with Caeathro). It lies along the

A487 road The A487, officially the Fishguard to Bangor Trunk Road, is a trunk road in Wales that follows the coast from Haverfordwest, Pembrokeshire, in the south, to Bangor, Gwynedd, in the north. Route The road starts at a junction with the A40 in ...

, on the eastern shore of the Menai Strait, opposite the

Isle of Anglesey Anglesey (; cy, (Ynys) Môn ) is an island off the north-west coast of Wales. It forms a principal area known as the Isle of Anglesey, that includes Holy Island across the narrow Cymyran Strait and some islets and skerries. Anglesey island, ...

. The city of Bangor is to the north-east, while

Snowdonia Snowdonia or Eryri (), is a mountainous region in northwestern Wales and a national park of in area. It was the first to be designated of the three national parks in Wales, in 1951. Name and extent It was a commonly held belief that the na ...

fringes Caernarfon to the east and south-east. Carnarvon and Caernarvon are Anglicised spellings that were superseded in 1926 and 1974 respectively. Abundant natural resources in and around the Menai Strait enabled human habitation in

prehistoric Britain Several species of humans have intermittently occupied Great Britain for almost a million years. The earliest evidence of human occupation around 900,000 years ago is at Happisburgh on the Norfolk coast, with stone tools and footprints prob ...

. The Ordovices, a

Celtic tribe Celtic, Celtics or Keltic may refer to: Language and ethnicity *pertaining to Celts, a collection of Indo-European peoples in Europe and Anatolia **Celts (modern) *Celtic languages ** Proto-Celtic language *Celtic music *Celtic nations Sports Fo ...

, lived in the region during the period known as

Roman Britain Roman Britain was the period in classical antiquity when large parts of the island of Great Britain were under occupation by the Roman Empire. The occupation lasted from AD 43 to AD 410. During that time, the territory conquered wa ...

. The Roman fort

Segontium Segontium ( owl, Cair Segeint) is a Roman fort on the outskirts of Caernarfon in Gwynedd, North Wales. The fort, which survived until the end of the Roman occupation of Britain, was garrisoned by Roman auxiliaries from present-day Belgium and Ge ...

was established around AD 80 to subjugate the Ordovices during the Roman conquest of Britain. The Romans occupied the region until the end of Roman rule in Britain in 382, after which Caernarfon became part of the

Kingdom of Gwynedd The Kingdom of Gwynedd (Medieval Latin: ; Middle Welsh: ) was a Welsh kingdom and a Roman Empire successor state that emerged in sub-Roman Britain in the 5th century during the Anglo-Saxon settlement of Britain. Based in northwest Wales, th ...

. In the late 11th century,

William the Conqueror William I; ang, WillelmI (Bates ''William the Conqueror'' p. 33– 9 September 1087), usually known as William the Conqueror and sometimes William the Bastard, was the first House of Normandy, Norman List of English monarchs#House of Norman ...

ordered the construction of a

motte-and-bailey castle A motte-and-bailey castle is a European fortification with a wooden or stone keep situated on a raised area of ground called a motte, accompanied by a walled courtyard, or bailey, surrounded by a protective ditch and palisade. Relatively easy t ...

at Caernarfon as part of the

Norman invasion of Wales The Norman invasion of Wales began shortly after the Norman conquest of England under William the Conqueror, who believed England to be his birthright. Initially (1067–1081), the invasion of Wales was not undertaken with the fervour and purpose ...

. He was unsuccessful, and Wales remained independent until around 1283. In the 13th century,

Llywelyn ap Gruffudd Llywelyn ap Gruffudd (c. 1223 – 11 December 1282), sometimes written as Llywelyn ap Gruffydd, also known as Llywelyn the Last ( cy, Llywelyn Ein Llyw Olaf, lit=Llywelyn, Our Last Leader), was the native Prince of Wales ( la, Princeps Wall ...

, ruler of Gwynedd, refused to pay homage to

Edward I of England Edward I (17/18 June 1239 – 7 July 1307), also known as Edward Longshanks and the Hammer of the Scots, was King of England and Lord of Ireland from 1272 to 1307. Concurrently, he ruled the duchies of Aquitaine and Gascony as a vas ...

, prompting the English conquest of Gwynedd. This was followed by the construction of Caernarfon Castle, one of the largest and most imposing fortifications built by the English in Wales. In 1284, the English-style county of

Caernarfonshire , HQ= County Hall, Caernarfon , Map= , Image= Flag , Motto= Cadernid Gwynedd (The strength of Gwynedd) , year_start= , Arms= ''Coat of arms of Caerna ...

was established by the

Statute of Rhuddlan The Statute of Rhuddlan (12 Edw 1 cc.1–14; cy, Statud Rhuddlan ), also known as the Statutes of Wales ( la, Statuta Valliae) or as the Statute of Wales ( la, Statutum Valliae, links=no), provided the constitutional basis for the government of ...

; the same year, Caernarfon was made a

borough A borough is an administrative division in various English-speaking countries. In principle, the term ''borough'' designates a self-governing walled town, although in practice, official use of the term varies widely. History In the Middle A ...

, a

county A county is a geographic region of a country used for administrative or other purposes Chambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...

and

market town A market town is a settlement most common in Europe that obtained by custom or royal charter, in the Middle Ages, a market right, which allowed it to host a regular market; this distinguished it from a village or city. In Britain, small rural ...

, and the seat of English government in north Wales. The ascent of the House of Tudor to the throne of England eased hostilities with the English and resulted in Caernarfon Castle falling into a state of disrepair. The town has flourished, leading to its status as a major tourist centre and seat of

Gwynedd Council Cyngor Gwynedd ( en, Gwynedd Council) is the governing body for the county of Gwynedd, one of the principal areas of Wales. The council administrates internally using the Welsh language. History The county of Gwynedd was created in 1974 under ...

, with a thriving harbour and marina. Caernarfon has expanded beyond its medieval walls and experienced heavy suburbanisation. The community of Caernarfon's population includes the highest percentage of Welsh-speaking citizens anywhere in Wales. The status of Royal Borough was granted by Queen

Elizabeth II Elizabeth II (Elizabeth Alexandra Mary; 21 April 1926 – 8 September 2022) was Queen of the United Kingdom and other Commonwealth realms from 6 February 1952 until her death in 2022. She was queen regnant of 32 sovereign states during ...

in 1963 and amended to Royal Town in 1974. The castle and town walls are part of a

World Heritage Site A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for h ...

described as the

Castles and Town Walls of King Edward in Gwynedd The Castles and Town Walls of King Edward in Gwynedd is a UNESCO-designated World Heritage Site located in Gwynedd, Wales. It includes the castles of Beaumaris and Harlech and the castles and town walls of Caernarfon and Conwy. UNESCO considers ...

History

The present city of Caernarfon grew up around and owes its name to its Norman and late Medieval

fortifications A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''facere'' ...

.Allen, Grant
"Casters and Chesters" in ''The Cornhill Magazine'', Vol. XLV, pp. 419 ff.
Smith, Elder, & Co. (London), 1882. The earlier

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

and

Romano-British The Romano-British culture arose in Britain under the Roman Empire following the Roman conquest in AD 43 and the creation of the province of Britannia. It arose as a fusion of the imported Roman culture with that of the indigenous Britons, ...

settlement at

was named for the nearby

Afon Seiont Afon Seiont (Welsh, meaning ''River Seiont'' in English) is a river in Gwynedd, Wales which runs into the Menai Strait. Its source is the outflow of Llyn Padarn near Llanberis, and it flows out in a generally northwest direction. Between th ...

. After the end of Roman rule in Britain around 410, the settlement continued to be known as ' ("

Fort A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''facere'' ...

Seiont") and as ' ("

Constantius or Constantine"), of the ''History of the Britons'', cited by

James Ussher James Ussher (or Usher; 4 January 1581 – 21 March 1656) was the Church of Ireland Archbishop of Armagh and Primate of All Ireland between 1625 and 1656. He was a prolific scholar and church leader, who today is most famous for his ident ...

in Newman's life of Germanus of Auxerre, both of whose names appear among the 28 '' civitates'' of sub-Roman Britain in the ''

Historia Brittonum ''The History of the Britons'' ( la, Historia Brittonum) is a purported history of the indigenous British ( Brittonic) people that was written around 828 and survives in numerous recensions that date from after the 11th century. The ''Historia B ...

'' traditionally ascribed to Nennius. The work states that the inscribed tomb of "Constantius the Emperor" (presumably

Constantius Chlorus Flavius Valerius Constantius "Chlorus" ( – 25 July 306), also called Constantius I, was Roman emperor from 305 to 306. He was one of the four original members of the Tetrarchy established by Diocletian, first serving as caesar from 293 ...

, father of

Constantine the Great Constantine I ( , ; la, Flavius Valerius Constantinus, ; ; 27 February 22 May 337), also known as Constantine the Great, was Roman emperor from AD 306 to 337, the first one to convert to Christianity. Born in Naissus, Dacia Mediterran ...

) was still present in the 9th century.Newman, John Henry & al
p. 92.">''Lives of the English Saints: St. German, Bishop of Auxerre'', Ch. X: "Britain in 429, A. D.", p. 92.
James Toovey (London), 1844. (Constantius actually died at

York York is a cathedral city with Roman origins, sited at the confluence of the rivers Ouse and Foss in North Yorkshire, England. It is the historic county town of Yorkshire. The city has many historic buildings and other structures, such as a ...

;

Ford Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford F ...

credited the monument to a different Constantine, the supposed son of Saint Elen and

Magnus Maximus Magnus Maximus (; cy, Macsen Wledig ; died 8 August 388) was Roman emperor of the Western Roman Empire from 383 to 388. He usurped the throne from emperor Gratian in 383 through negotiation with emperor Theodosius I. He was made emperor in B ...

, who was said to have ruled northern Wales before being removed by the Irish.Ford, David Nash.
The 28 Cities of Britain
" at Britannia. 2000.) The

medieval romance As a literary genre, the chivalric romance is a type of prose and verse narrative that was popular in the noble courts of High Medieval and Early Modern Europe. They were fantastic stories about marvel-filled adventures, often of a chivalric k ...

about Maximus and Elen, '' Macsen's Dream'', calls her home ' ("

Seiontmouth" or "the

caer Caer (; owl, cair or ') is a placename element in Welsh meaning "stronghold", "fortress", or "citadel", roughly equivalent to an Old English suffix (''-ceaster'') now variously written as , , and .Allen, Grant.