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Johan de Witt (24 September 1625  â€“ 20 August 1672) was a Dutch statesman and mathematician who was a major political figure during the
First Stadtholderless Period The First Stadtholderless Period (1650–72; ) was the period in the history of the Dutch Republic in which the office of Stadtholder was vacant in five of the seven Dutch provinces (the provinces of Friesland and Groningen (province), Groningen, ...
, when flourishing global trade in a period of rapid European colonial expansion made the Dutch a leading trading and seafaring power in Europe, commonly referred to as the
Dutch Golden Age The Dutch Golden Age ( ) was a period in the history of the Netherlands which roughly lasted from 1588, when the Dutch Republic was established, to 1672, when the '' Rampjaar'' occurred. During this period, Dutch trade, scientific development ...
. De Witt was elected Grand Pensionary of Holland, and together with his uncle
Cornelis de Graeff Cornelis de Graeff (15 October 1599 – 4 May 1664), often named ''Polsbroek'' or ''de heer van (lord) Polsbroek'' during his lifetime, was an influential regenten, regent and burgomaster (mayor) of Amsterdam, statesman and diplomat of Holland an ...
,Life/Death Rhythms of Capitalist Regimes – Debt before Dishonour, p. 98, by Will Slatyer (2014)
/ref> he controlled the Dutch political system from around 1650 until the (Disaster Year) of 1672. This progressive cooperation between the two statesmen, and the consequent support of Amsterdam under the rule of De Graeff,The World, by Simon Sebag Montefiore (2022)
/ref> was an important political axis that organized the political system within the republic. As a leading republican of the Dutch States Party, De Witt opposed the
House of Orange-Nassau The House of Orange-Nassau (, ), also known as the House of Orange because of the prestige of the princely title of Orange, also referred to as the Fourth House of Orange in comparison with the other noble houses that held the Principality of Or ...
and the Orangists and preferred a shift of power from the
central government A central government is the government that is a controlling power over a unitary state. Another distinct but sovereign political entity is a federal government, which may have distinct powers at various levels of government, authorized or deleg ...
to the '' regenten''. However, the Dutch Republic suffered numerous early defeats in the Rampjaar, due to an alliance of
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 ...
,
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
and several German states which planned on invading the Dutch Republic. In the hysteria that followed, he and his brother
Cornelis de Witt Cornelis de Witt (15 June 1623 – 20 August 1672) was a Dutch States Navy officer and statesman. During the First Stadtholderless Period, De Witt was an influential member of the Dutch States Party, and was in opposition to the House of Oran ...
were blamed and lynched in The Hague, with their corpses at least partially eaten by the rioters. These cannibals were never prosecuted, and some historians claim William of Orange may have incited them.


Family and early life

Johan de Witt was a member of the old Dutch De Witt family. His father was Jacob de Witt, an influential
regent In a monarchy, a regent () is a person appointed to govern a state because the actual monarch is a minor, absent, incapacitated or unable to discharge their powers and duties, or the throne is vacant and a new monarch has not yet been dete ...
from the patrician class in the city of
Dordrecht Dordrecht (), historically known in English as Dordt (still colloquially used in Dutch, ) or Dort, is a List of cities in the Netherlands by province, city and List of municipalities of the Netherlands, municipality in the Western Netherlands, lo ...
, which in the 17th century was one of the most important cities of the dominating province of Holland. De Witt's mother was Anna van den Corput (1599–1645), niece of Johannes Corputius, an influential Dutch military leader and cartographer. Johan had an older brother,
Cornelis de Witt Cornelis de Witt (15 June 1623 – 20 August 1672) was a Dutch States Navy officer and statesman. During the First Stadtholderless Period, De Witt was an influential member of the Dutch States Party, and was in opposition to the House of Oran ...
, who had a steep career in the shadow of Johan de Witt. His uncle Andries de Witt held the position of Grand Pensionary of Holland between 1619 and 1621. Through the marriage of one of his other uncles to Margaretha of Nassau, daughter of
Anna Johanna of Nassau-Siegen Anna may refer to: People Surname and given name * Anna (name) Mononym * Anna the Prophetess, in the Gospel of Luke * Anna of East Anglia, King (died c.654) * Anna (wife of Artabasdos) (fl. 715–773) * Anna (daughter of Boris I) (9th–10th c ...
, De Witt was a distant relative of William of Orange-Nassau. Another relationship connected him to the Tromps, Maarten and his son
Cornelis Tromp Cornelis Maartenszoon Tromp, ''Count of Sølvesborg'' (3 September 1629 â€“ 29 May 1691) was a Dutch naval officer who served as lieutenant-admiral general in the Dutch Navy, and briefly as a general admiral in the Royal Danish-Norwegian ...
, both admirals of the Netherlands. Johan and his older brother Cornelis grew up in a privileged environment in terms of education, his father having as good acquaintances important scholars and scientists, such as Isaac Beeckman, Jacob Cats,
Gerardus Vossius Gerrit Janszoon Vos (March or April 1577, Heidelberg – 19 March 1649, Amsterdam), often known by his Latin name Gerardus Vossius, was a Dutch classical scholar, theologian, and polymath. Life He was the son of Johannes (Jan) Vos, a Protestant ...
, and Andreas Colvius. Johan and Cornelis both attended the Latin school in Dordrecht, which imbued them with the values of the Roman Republic. After attending the Latin school in Dordrecht, Johan de Witt studied at the
Leiden University Leiden University (abbreviated as ''LEI''; ) is a Public university, public research university in Leiden, Netherlands. Established in 1575 by William the Silent, William, Prince of Orange as a Protestantism, Protestant institution, it holds the d ...
, where he excelled at
mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
and
law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior, with its precise definition a matter of longstanding debate. It has been variously described as a science and as the ar ...
. He received his
doctorate A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach ...
from the University of Angers in 1645. He practised law in
The Hague The Hague ( ) is the capital city of the South Holland province of the Netherlands. With a population of over half a million, it is the third-largest city in the Netherlands. Situated on the west coast facing the North Sea, The Hague is the c ...
as an associate with the firm of
Frans van Schooten Frans van Schooten Jr. also rendered as Franciscus van Schooten (15 May 1615 – 29 May 1660) was a Dutch mathematician who is most known for popularizing the analytic geometry of René Descartes. He translated La Géométrie in Latin and wrote c ...
.


Marriage and children

In 1655 Johan de Witt married Wendela Bicker, daughter of Johan Bicker and Agneta de Graeff van Polsbroek, who belonged to the inner circle of the powerful Amsterdam
oligarchy Oligarchy (; ) is a form of government in which power rests with a small number of people. Members of this group, called oligarchs, generally hold usually hard, but sometimes soft power through nobility, fame, wealth, or education; or t ...
. Through his marriage, De Witt became a relative of the ruling patrician families Bicker, De Graeff, Hooft, Witsen, Boelens Loen, and Reynst among others. His brothers-in-law also included Amsterdam patrician
Pieter de Graeff Pieter de Graeff (15 August 1638 – 3 June 1707) was a Dutch Republic, Dutch Aristocracy (class), aristocrat of the Dutch Golden Age and one of the most influential pro-state, republican Amsterdam regenten, Regents during the late 1660s and the ...
(who was also his full cousin), high official Gerard Bicker (I) van Swieten, arms dealer Jacob Trip and banker and financier Jean Deutz, all important and loyal political allies of De Witt. Frans Banninck Cocq (captain of
Rembrandt Rembrandt Harmenszoon van Rijn (; ; 15 July 1606 â€“ 4 October 1669), mononymously known as Rembrandt was a Dutch Golden Age painter, printmaker, and Drawing, draughtsman. He is generally considered one of the greatest visual artists in ...
's famous painting ''
The Night Watch ''Militia Company of District II under the Command of Captain Frans Banninck Cocq'', also known as ''The Shooting Company of Frans Banning Cocq and Willem van Ruytenburch'', but commonly referred to as ''The Night Watch'' (), is a 1642 painting ...
'') became his uncle-in-law and Joachim Irgens von Westervick (between 1666 and 1675 owner of the private Irgens Estate, which was a huge part of
Northern Norway Northern Norway (, , ; ) is a geographical region of Norway, consisting of the three northernmost counties Nordland, Troms and Finnmark, in total about 35% of the Norwegian mainland. Some of the largest towns in Northern Norway (from south to no ...
) his cousin-in-law as well. Johan and Wendela had four children, three daughters and one son: # Anna de Witt (1655–1725), married to Herman van den Honert # Agnes de Witt (1658–1688), married to Simon Teresteyn van Halewijn # Maria de Witt (1660–1689), married to Willem Hooft # Johan de Witt Jr. (1662–1701), secretary of the city of
Dordrecht Dordrecht (), historically known in English as Dordt (still colloquially used in Dutch, ) or Dort, is a List of cities in the Netherlands by province, city and List of municipalities of the Netherlands, municipality in the Western Netherlands, lo ...
; married to Wilhelmina de Witt, the daughter of his uncle
Cornelis de Witt Cornelis de Witt (15 June 1623 – 20 August 1672) was a Dutch States Navy officer and statesman. During the First Stadtholderless Period, De Witt was an influential member of the Dutch States Party, and was in opposition to the House of Oran ...
After De Witt's death, Pieter de Graeff, husband of his wife Wendela's younger sister Jacoba Bicker, became the guardian of his children.


Politics

In 1650 (the year that
stadtholder In the Low Countries, a stadtholder ( ) was a steward, first appointed as a medieval official and ultimately functioning as a national leader. The ''stadtholder'' was the replacement of the duke or count of a province during the Burgundian and ...
William II, Prince of Orange William II (Dutch language, Dutch: ''Willem II''; 27 May 1626 – 6 November 1650) was sovereign Prince of Orange and Stadtholder of County of Holland, Holland, County of Zeeland, Zeeland, Lordship of Utrecht, Utrecht, Guelders, Lordship of Ove ...
died) he was appointed leader of the deputation of
Dordrecht Dordrecht (), historically known in English as Dordt (still colloquially used in Dutch, ) or Dort, is a List of cities in the Netherlands by province, city and List of municipalities of the Netherlands, municipality in the Western Netherlands, lo ...
to the
States of Holland and West Friesland The States of Holland and West Frisia () were the representation of the two Estates of the realm, Estates (''standen'') to the court of the Count of Holland. After the Dutch Republic, United Provinces were formed — and there no longer was a count, ...
. In December 1650, De Witt became the pensionary of Dordrecht as the successor of Nicolaas Ruys. In 1652, at the age of 27, De Witt was faced with a mob of angry demonstrators of sailors and fishermen in the city of
Vlissingen Vlissingen (; ) is a Municipalities of the Netherlands, municipality and a city in the southwestern Netherlands on the island of Walcheren. With its strategic location between the Scheldt river and the North Sea, Vlissingen has been an importan ...
. He held this position until July 1653 and was succeeded by Govert van Slingelandt, a distant relative of his.


Elected Grand Pensionary

In July 1653, the
States of Holland The States of Holland and West Frisia () were the representation of the two Estates (''standen'') to the court of the Count of Holland. After the United Provinces were formed — and there no longer was a count, but only his "lieutenant" (the stad ...
elected De Witt Grand Pensionary. In making the appointment, De Witt relied on the express consent of Amsterdam headed by burgomaster and regent
Cornelis de Graeff Cornelis de Graeff (15 October 1599 – 4 May 1664), often named ''Polsbroek'' or ''de heer van (lord) Polsbroek'' during his lifetime, was an influential regenten, regent and burgomaster (mayor) of Amsterdam, statesman and diplomat of Holland an ...
. The States of Holland chose him with the express intercession of his later uncle De Graeff.Biography Cornelis de Graeff at Nieuw Nederlandsch biografisch woordenboek. Deel 2 (Dutch)
/ref> Since Holland was the Republic's most powerful province, he was effectively the political leader of the United Provinces as a whole, especially during periods when no stadholder had been elected by the States of most Provinces. The ''raadpensionaris'' of Holland was often referred to as the Grand Pensionary by foreigners as he represented the preponderant province in the Union of the
Dutch Republic The United Provinces of the Netherlands, commonly referred to in historiography as the Dutch Republic, was a confederation that existed from 1579 until the Batavian Revolution in 1795. It was a predecessor state of the present-day Netherlands ...
. He led the States of the province by his experience, tenure, familiarity with the issues, and use of the staff at his disposal. He was in no manner equivalent to a modern
Prime Minister A prime minister or chief of cabinet is the head of the cabinet and the leader of the ministers in the executive branch of government, often in a parliamentary or semi-presidential system. A prime minister is not the head of state, but r ...
. Representing the province of Holland, De Witt tended to identify with the economic interests of the shipping and trading interests in the United Provinces. These interests were largely concentrated in the province of Holland, and to a lesser degree in the province of Zeeland.


Political goals

As leader of the state-oriented party, Johan de Witt pursued the interests of the Dutch patricians and merchants. He had his most important goals formulated in 1662 by his like-minded Pieter de la Court in the book ''The Interest of Holland''. They were: # Peaceful foreign policy, since every war weighed on the economy. De la Court went so far as to suggest replacing the lion in the Dutch coat of arms with a cat. # Greatest possible autonomy for Holland and distance from the other six provinces, since these were a burden on rich Holland. De la Court suggested digging a huge ditch to mark the separation, but this was meant to be satirical. # Permanent disempowerment of the Princes of Orange, since their dynastic ambitions ran counter to the sober interests of the merchants.


Relationship with Cornelis de Graeff

At the height of the Dutch Golden Age, the
First Stadtholderless Period The First Stadtholderless Period (1650–72; ) was the period in the history of the Dutch Republic in which the office of Stadtholder was vacant in five of the seven Dutch provinces (the provinces of Friesland and Groningen (province), Groningen, ...
from 1650 to 1672, political power within Holland rested primarily with two pro-state minded, republican, families. At Amsterdam, this lay with the brothers
Cornelis Cornelis is a Dutch language, Dutch form of the male given name Cornelius (name), Cornelius. Some common shortened versions of Cornelis in Dutch are Cees, Cor, Corné, Corneel, Crelis, Kees (given name), Kees, Neel and Nelis. Cornelis (Kees) an ...
and Andries de Graeff, and at The Hague with the brothers Johan and
Cornelis de Witt Cornelis de Witt (15 June 1623 – 20 August 1672) was a Dutch States Navy officer and statesman. During the First Stadtholderless Period, De Witt was an influential member of the Dutch States Party, and was in opposition to the House of Oran ...
, leaders of the pro-state (republican) faction of Holland, reinforced by their close collaboration and mutual kinship. Domestically, Johan de Witt relied on political cooperation with the Dutch cities, and above all with Amsterdam. In doing so, De Witt recognized the political power of his uncle burgomaster Cornelis de Graeff, and did his best to accommodate Amsterdam's wishes. De Witt needed his political advice, the support of the Amsterdam government under De Graeff and his clientele, but he also enjoyed his clear mind and humane frankness. De Graeff combined a clear mind, extensive education and the ability to give and take. In one respect, however, he differed from his uncle, for although De Witt was a supporter of liberty like him, in contrast to him he clung to the extreme, which was to prove to be a fatal error in the '' Rampjaar'' 1672. The relationship between these two distinct characters was a combination of close kinship and mutual respect. De Graeff was a political equal to De Witt like no other. From then on, De Graeff was at his side as an experienced and trusted councilman. De Witt's letters to De Graeff testify to the great trust that the nephew had in his uncle in political and family matters (a short exchange of letters from the year 1660 bears witness to this). That did not rule out a fight between the two. Nevertheless, the relationship remained excellent. De Witt understood the remark of Cornelis de Vlaming van Oudshoorn, another Amsterdam burgomaster, ''dat zonder den heer van Zuidpolsbroek'' e Graeff''in niets iets te doen was'' (that without the Lord of Zuid-Polsbroek nothing could be done anywhere).


Leading statesman

De Witt's power base was the wealthy merchant and patrician class into which he was born. This class broadly coincided politically with the "
States faction The Dutch States Party () was a Republicanism, republican political faction, and one of the two main factions of the Dutch Republic from the early 1600s to the mid-1700s. They favored the power of the ''regenten'' and opposed the Orangism (Nether ...
", stressing Protestant religious moderation and pragmatic foreign policy defending commercial interests. The " Orange faction", consisting of the middle class, preferred a strong leader from the Dutch
House of Orange The House of Orange-Nassau (, ), also known as the House of Orange because of the prestige of the princely title of Orange, also referred to as the Fourth House of Orange in comparison with the other noble houses that held the Principality of O ...
as a counterweight against the rich upper-classes in economic and religious matters. Although leaders that did emerge from the House of Orange rarely were strict
Calvinists Reformed Christianity, also called Calvinism, is a major branch of Protestantism that began during the 16th-century Protestant Reformation. In the modern day, it is largely represented by the Continental Reformed Christian, Presbyterian, ...
themselves, they tended to identify with Calvinism, which was popular among the middle classes in the United Provinces during this time. William II of Orange was a prime example of this tendency among the leaders of the House of Orange to support Calvinism. William II was elected stadholder in 1647 and continued to serve until his death in November 1650. Eight days after his death, William II's wife delivered a male heir, William of Orange. Many citizens of the United Provinces urged the election of the infant William III as a stadholder under a regency until he came of age. However, the Provinces, under the dominance of the province of Holland did not fill the office of stadholder. When Johan de Witt became de facto leader of the Dutch Republic in 1653, the state was at war with England. The superior English navy blockaded Dutch ports, which triggered a severe economic crisis. De Witt's priority was therefore a speedy peace agreement with England. The
Lord Protector Lord Protector (plural: ''Lords Protector'') is a title that has been used in British constitutional law for the head of state. It was also a particular title for the British heads of state in respect to the established church. It was sometime ...
of England,
Oliver Cromwell Oliver Cromwell (25 April 15993 September 1658) was an English statesman, politician and soldier, widely regarded as one of the most important figures in British history. He came to prominence during the Wars of the Three Kingdoms, initially ...
, demanded as a condition that the House of Orange should be permanently excluded from power in the Dutch Republic. Cromwell's motive was that the house supported his opponents, the
House of Stuart The House of Stuart, originally spelled Stewart, also known as the Stuart dynasty, was a dynasty, royal house of Kingdom of Scotland, Scotland, Kingdom of England, England, Kingdom of Ireland, Ireland and later Kingdom of Great Britain, Great ...
. De Witt knew that the other six Dutch provinces would not agree to such a dictate. But that changed the exemplary collaboration between De Witt and his influential later uncle Cornelis de Graeff, which was an important factor in the success of De Witt's policies and the revival of economic progress after the First Anglo-Dutch War. Together with his De Graeff, De Witt brought about peace with England with the Treaty of Westminster in May 1654. As a result of the positive course of the war for the Netherlands, the Dutch leadership around De Witt, De Graeff, the army commander Johann Wolfart van Brederode and Lieutenant Admiral Jacob van Wassenaer Obdam urged the Dutch States General to position themselves as a whole behind the secret Act of Seclusion, which would exclude the young William III from the office of stadtholder. This resolution was drafted by De Graeff in collaboration with De Witt and diplomat Hieronymus van Beverningh. In the period following the Treaty of Westminster, the Republic grew in wealth and influence under De Witt's leadership. In the years that followed, he consistently pursued the commercial interests of his country. In 1658/59 he sent large naval forces to the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...
to support Denmark against Sweden in the
Second Northern War The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes, and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of ...
and to ensure free passage for Dutch merchant ships through the
Øresund Øresund or Öresund (, ; ; ), commonly known in English as the Sound, is a strait which forms the Denmark–Sweden border, Danish–Swedish border, separating Zealand (Denmark) from Scania (Sweden). The strait has a length of ; its width var ...
. De Witt created a strong Dutch States Navy, appointing one of his political allies, Lieutenant Admiral Van Wassenaer Obdam, as supreme commander of the Confederate fleet. In these turbulent times of the first governorless period, his trusted councilman, Coenraad van Beuningen, had been a great support to him. One of his brothers-in-law, Jean Deutz, was a trusted advisor on economic matters and financed the wars of the republic under his brother-in-law De Witt. Despite all these quick political successes, De Witt always presented himself to the outside world as a humble civil servant who walked the streets of
The Hague The Hague ( ) is the capital city of the South Holland province of the Netherlands. With a population of over half a million, it is the third-largest city in the Netherlands. Situated on the west coast facing the North Sea, The Hague is the c ...
without an escort and with only one servant. According to the English ambassador Sir William Temple, he was outwardly "indistinguishable from the common man". He himself always emphasized that he had "no decisive vote, authority or power" in the Assembly of States of Holland. But the French ambassador reported to Paris that power in the Netherlands rested with "Monsieur de Witt". In 1657, De Witt and De Graeff mediated the " Treaty of Raalte", in which William III passed the stadholdership of
Overijssel Overijssel (; ; ; ) is a Provinces of the Netherlands, province of the Netherlands located in the eastern part of the country. The province's name comes from the perspective of the Prince-Bishopric of Utrecht, Episcopal principality of Utrecht ...
. On 25 September 1660, the
States of Holland The States of Holland and West Frisia () were the representation of the two Estates (''standen'') to the court of the Count of Holland. After the United Provinces were formed — and there no longer was a count, but only his "lieutenant" (the stad ...
under the prime movers of De Witt, De Graeff, his younger brother Andries de Graeff, along with Gillis Valckenier, resolved to take charge of William's education to ensure he would acquire the skills to serve in a future – although undetermined – state function. Influenced by the values of the Roman republic, De Witt did his utmost anyway to prevent any member of the House of Orange from gaining power, convincing many provinces to abolish the stadtholderate entirely. He bolstered his policy by publicly endorsing the theory of
republicanism Republicanism is a political ideology that encompasses a range of ideas from civic virtue, political participation, harms of corruption, positives of mixed constitution, rule of law, and others. Historically, it emphasizes the idea of self ...
. He allegedly contributed personally to the ''Interest of Holland'', a radical republican textbook published in 1662, by his supporter Pieter de la Court. As a result, De Witt attracted the hatred of all supporters of the Oranges, who were mainly found among the common people.


War with England, conflict with France

After the death of
Oliver Cromwell Oliver Cromwell (25 April 15993 September 1658) was an English statesman, politician and soldier, widely regarded as one of the most important figures in British history. He came to prominence during the Wars of the Three Kingdoms, initially ...
in 1658, the English monarchy was restored in 1660 as
Charles II of England Charles II (29 May 1630 – 6 February 1685) was King of Scotland from 1649 until 1651 and King of England, Scotland, and King of Ireland, Ireland from the 1660 Restoration of the monarchy until his death in 1685. Charles II was the eldest su ...
returned to power. This further deteriorated Anglo-Dutch relations, and five years later the
Second Anglo-Dutch War The Second Anglo-Dutch War, began on 4 March 1665, and concluded with the signing of the Treaty of Breda (1667), Treaty of Breda on 31 July 1667. It was one in a series of Anglo-Dutch Wars, naval wars between Kingdom of England, England and the D ...
broke out. De Witt reformed the Dutch naval forces by building larger and more heavily armed warships modelled after the English navy. After an initial defeat at the
Battle of Lowestoft The Battle of Lowestoft took place on during the Second Anglo-Dutch War. A fleet of more than a hundred ships of the Dutch Republic, United Provinces commanded by Lieutenant-Admiral Jacob van Wassenaer Obdam, Jacob van Wassenaer, Lord Obdam, at ...
, he temporarily took command of the Dutch fleet himself. As a remedy for his seasickness,
Christiaan Huygens Christiaan Huygens, Halen, Lord of Zeelhem, ( , ; ; also spelled Huyghens; ; 14 April 1629 – 8 July 1695) was a Dutch mathematician, physicist, engineer, astronomer, and inventor who is regarded as a key figure in the Scientific Revolution ...
, the inventor of the pendulum clock, developed a special hammock that did not rock. At the end of 1665
Michiel de Ruyter Michiel Adriaenszoon de Ruyter (; 24 March 1607 â€“ 29 April 1676) was a Dutch States Navy officer. His achievements with the Dutch navy during the Anglo-Dutch Wars earned him the reputation as one of the most skilled naval commanders in ...
took over command of the Dutch navy at De Witt's instigation. Further fighting in 1666 and a massive plague and devastating fire in
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 ...
caused severe economic difficulties in England. By 1667, the English were unable to put a new fleet to sea, De Witt took advantage of this by having the Dutch navy sail up the
River Medway The River Medway is a river in South East England. It rises in the High Weald AONB, High Weald, West Sussex and flows through Tonbridge, Maidstone and the Medway conurbation in Kent, before emptying into the Thames Estuary near Sheerness, a to ...
under the command of his brother
Cornelis de Witt Cornelis de Witt (15 June 1623 – 20 August 1672) was a Dutch States Navy officer and statesman. During the First Stadtholderless Period, De Witt was an influential member of the Dutch States Party, and was in opposition to the House of Oran ...
. At
Chatham, Kent Chatham ( ) is a town within the Medway unitary authority in the ceremonial county of Kent, England. The town forms a conurbation with neighbouring towns Gillingham, Rochester, Strood and Rainham. In 2020 it had a population of 80,596. Th ...
, the Dutch burnt several English warships anchored there. Dutch cannon fire was heard in London, causing panic to break out there. England then became ready for peace negotiations, in which De Witt was involved. The peace between the two states was sealed in 1667 with the Peace of Breda. In 1667, with the support of Gaspar Fagel, Gillis Valckenier and his uncle Andries de Graeff, De Witt issued the Perpetual Edict, which abolished the governorship and thus the final overthrow of the House of Orange. and the incompatibility of a
stadtholder In the Low Countries, a stadtholder ( ) was a steward, first appointed as a medieval official and ultimately functioning as a national leader. The ''stadtholder'' was the replacement of the duke or count of a province during the Burgundian and ...
ship with the Captain Generalship of the Republic of the United Netherlands. As part of efforts by the States General to contest commercial superiority with England, the
Dutch States Army The Dutch States Army () was the army of the Dutch Republic. It was usually called this, because it was formally the army of the States-General of the Netherlands, the sovereign power of that federal republic. This army was brought to such a size ...
was greatly neglected. This was not without danger because French politics at that time was characterized by unbridled expansionism, which was reinforced by the formidable economic competition of the Dutch Republic. Johan de Witt tried to guarantee the safety of the Republic with a pro-French policy but did not want to agree with King Louis XIV's plan to divide the
Spanish Netherlands The Spanish Netherlands (; ; ; ) (historically in Spanish: , the name "Flanders" was used as a '' pars pro toto'') was the Habsburg Netherlands ruled by the Spanish branch of the Habsburgs from 1556 to 1714. They were a collection of States of t ...
. He preferred a Spanish-administered buffer zone on the southern border of the Republic to a border with powerful France. The Triple Alliance was concluded on 23 January 1668 with England and Sweden. It stipulated that the three countries would support each other militarily if France attacked one of them. De Witt nevertheless did not want a break with Louis XIV. It was therefore agreed to urge Spain to cede a number of cities in the Spanish Netherlands to him. Only if Louis XIV rejected this and prolonged the
War of Devolution The War of Devolution took place from May 1667 to May 1668. In the course of the war, Kingdom of France, France occupied large parts of the Spanish Netherlands and County of Burgundy, Franche-Comté, both then provinces of the Holy Roman Empire ...
to take control of the whole area would the three countries take military force against France. Especially at De Witt's request, that last appointment was included in a secret clause because he did not want to offend the French. What De Witt did not know was that Charles II had only entered into the treaty to sever all Dutch-French ties for good. A month after its conclusion, he divulged the details of the secret clause to Louis XIV, who, eager for revenge, concluded the secret
Treaty of Dover The Treaty of Dover, also known as the Secret Treaty of Dover, was an agreement between Louis XIV of France and Charles II of England signed at Dover on 1 June 1670. Officially, it only committed England to provide France with general diplomatic ...
with England, stipulating that the Dutch Republic would be attacked jointly., Stadhouder-Koning Willem III, een politieke biografie, p. 69–70, (2001)


Death

During 1672, which the Dutch refer to as the '' Rampjaar'' ("disaster year"), France and England declared war on the Dutch Republic in the
Franco-Dutch War The Franco-Dutch War, 1672 to 1678, was primarily fought by Kingdom of France, France and the Dutch Republic, with both sides backed at different times by a variety of allies. Related conflicts include the 1672 to 1674 Third Anglo-Dutch War and ...
. De Witt was severely wounded by a knife-wielding assassin on 21 June. He resigned as Grand Pensionary on 4 August, but this was not enough for his enemies. His brother Cornelis (who was deputy-in-the-field for de Ruyter at the Raid on the Medway), particularly hated by the Orangists, was arrested on trumped-up charges of treason. He was tortured (as was usual under
Roman-Dutch law Roman-Dutch law ( Dutch: ''Rooms-Hollands recht'', Afrikaans: ''Romeins-Hollandse reg'') is an uncodified, scholarship-driven, and judge-made legal system based on Roman law as applied in the Netherlands in the 17th and 18th centuries. As such, ...
, which required a confession before a conviction was possible) but refused to confess. Nevertheless, he was sentenced to exile. When his brother went over to the jail (which was only a few steps from his house) to help him get started on his journey, both were attacked by members of The Hague's civic militia. The brothers were shot and then left to the mob. Their naked, mutilated bodies were strung up on the nearby public
gibbet Gibbeting is the use of a gallows-type structure from which the dead or dying bodies of criminals were hanged on public display to deter other existing or potential criminals. Occasionally, the gibbet () was also used as a method of public ex ...
, while the Orangist mob ate their roasted
liver The liver is a major metabolic organ (anatomy), organ exclusively found in vertebrates, which performs many essential biological Function (biology), functions such as detoxification of the organism, and the Protein biosynthesis, synthesis of var ...
s in a cannibalistic frenzy. Throughout it all, a remarkable discipline was maintained by the mob, according to contemporary observers, lending doubt as to the spontaneity of the event. De Witt had in effect ruled the Republic for almost 20 years. His regime outlasted him for only a few more days. Though no more people were killed, the lynching of the De Witts lent renewed impetus to the mob attacks, and to help restore public order the States of Holland empowered William on 27 August to purge the city councils in any way he would see fit to restore public order. The following purges in the early days of September were accompanied by large, but peaceful, Orangist demonstrations, that had a remarkable political character. The demonstrations delivered petitions that demanded certain additional reforms with a, in a sense, "reactionary" flavour: the "ancient" privileges of the guilds and civic militiaswho were traditionally seen as mouthpieces of the citizenry as a wholeto curb the regent's powers were to be recognised again (as in pre-Burgundian times). The demonstrators also demanded more influence of the Calvinist preachers on the content of government policies and a roll-back of the toleration of Catholics and other dissenting denominations. The purges of the city governments were not everywhere equally thoroughgoing (and, of course, there was little mention of popular influence later on, as the new regents shared the abhorrence of the old ones of real democratic reforms). But as a whole, the new Orangist regime of the Stadtholder was well-entrenched during his following reign. Whether William had a hand in the murder of the de Witt brothers remains unanswered, like his exact role in the later Massacre of Glencoe. That he ordered the withdrawal of a federal cavalry detachment that otherwise might have prevented the lynching has always raised eyebrows. He did not prosecute the well-known ringleaders like Johan van Banchem,
Cornelis Tromp Cornelis Maartenszoon Tromp, ''Count of Sølvesborg'' (3 September 1629 â€“ 29 May 1691) was a Dutch naval officer who served as lieutenant-admiral general in the Dutch Navy, and briefly as a general admiral in the Royal Danish-Norwegian ...
, and Johan Kievit, even advancing their careers. In any case, the political turmoil did not give the allies an opportunity to finish the Republic off. The French were effectively stymied by the water defences. Only when the inundations froze over in the following winter was there, briefly, a chance for Marshal Luxembourg, who had taken over command of the invading army from Louis, to make an incursion with 10,000 troops over ice. This almost ended in disaster, when they were ambushed. Meanwhile, the States General managed to conclude alliances with the German emperor and
Brandenburg Brandenburg, officially the State of Brandenburg, is a States of Germany, state in northeastern Germany. Brandenburg borders Poland and the states of Berlin, Mecklenburg-Vorpommern, Lower Saxony, Saxony-Anhalt, and Saxony. It is the List of Ger ...
, which helped relieve the French pressure in the East.


Mathematics

The kinematic description of
ellipse In mathematics, an ellipse is a plane curve surrounding two focus (geometry), focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. It generalizes a circle, which is the special ty ...
s dates from
Archimedes Archimedes of Syracuse ( ; ) was an Ancient Greece, Ancient Greek Greek mathematics, mathematician, physicist, engineer, astronomer, and Invention, inventor from the ancient city of Syracuse, Sicily, Syracuse in History of Greek and Hellenis ...
and
Proclus Proclus Lycius (; 8 February 412 â€“ 17 April 485), called Proclus the Successor (, ''Próklos ho Diádokhos''), was a Greek Neoplatonist philosopher, one of the last major classical philosophers of late antiquity. He set forth one of th ...
, as well as the contemporary Claude Mydorge. Johan de Witt describes the
hyperbola In mathematics, a hyperbola is a type of smooth function, smooth plane curve, curve lying in a plane, defined by its geometric properties or by equations for which it is the solution set. A hyperbola has two pieces, called connected component ( ...
with a rotating line and a sliding angle, and a
parabola In mathematics, a parabola is a plane curve which is Reflection symmetry, mirror-symmetrical and is approximately U-shaped. It fits several superficially different Mathematics, mathematical descriptions, which can all be proved to define exactl ...
by means of a rotating angle and sliding line. In 1661, de Witt's work appeared in the second volume of von Schooten's Latin translation of ''
La Géométrie ''La Géométrie'' () was published in 1637 as an appendix to ''Discours de la méthode'' ('' Discourse on the Method''), written by René Descartes. In the ''Discourse'', Descartes presents his method for obtaining clarity on any subject. ''La ...
''. ''Elementa Curvarum Linearum'' has been described as the first textbook in
analytic geometry In mathematics, analytic geometry, also known as coordinate geometry or Cartesian geometry, is the study of geometry using a coordinate system. This contrasts with synthetic geometry. Analytic geometry is used in physics and engineering, and als ...
.Albert W. Grootendorst (2000, 10) Jan de Witt's ''Elementa Curvarum Linearum'', in two volumes, ''Liber Primus'' (2000) and ''Liber Secundus'' (2010),
Springer books Springer Science+Business Media, commonly known as Springer, is a German multinational publishing company of books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing. Originally founded in 1842 in ...
De Witt composed the work in 1646 at the age of 23. In this work, whose content is largely based upon earlier work in
analytic geometry In mathematics, analytic geometry, also known as coordinate geometry or Cartesian geometry, is the study of geometry using a coordinate system. This contrasts with synthetic geometry. Analytic geometry is used in physics and engineering, and als ...
by
René Descartes René Descartes ( , ; ; 31 March 1596 – 11 February 1650) was a French philosopher, scientist, and mathematician, widely considered a seminal figure in the emergence of modern philosophy and Modern science, science. Mathematics was paramou ...
and Pierre de Fermat, he treated the subject of conic sections from a synthetic and an analytic point of view. The second book of the ''Elementa Curvarum Linearum'' is considered to be the first systematic treatise on conic sections using the new method. And although both Fermat and Descartes came to the same conclusions, De Witt was the first to give all the details to solve the locus problem for quadratic equations. De Witt contributed to financial mathematics: ''The Worth of Life Annuities Compared to Redemption Bonds''. This work combined his roles as a statesman and as a mathematician and was discussed in the correspondence between Leibniz and Jacob Bernoulli, Bernoulli concerning the use of probabilities. Ever since the Middle Ages, a life annuity was a way to obtain a regular income from a reliable source. The state, for instance, could provide a widow with a regular income until her death, in exchange for a 'lump sum' up front. There were also redemption bonds that were more like regular state loans. De Witt showed that for the same principal, a bond (finance), bond paying 4% interest would result in the same profit as a life annuity of 6% (1 in 17). But the 'Staten' at the time were paying over 7% (1 in 14). The publication about life annuities is "one of the first applications of probability in economics."


References


Footnotes


Bibliography

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External links

* * * * {{DEFAULTSORT:Witt, Johan De 17th-century Dutch politicians 17th-century Dutch mathematicians 1625 births 1672 deaths Assassinated Dutch politicians Cannibalised people Deaths by firearm in the Netherlands Dutch members of the Dutch Reformed Church Dutch States Party politicians Grand Pensionaries Leiden University alumni Lynching deaths Mathematical analysts People from Dordrecht People murdered in the Netherlands University of Angers (pre-1793) alumni De Witt family Politicians assassinated in the 17th century People of the War of Devolution People of the First Anglo-Dutch War