Isaac Dorislaus was an Anglo

Anglo

Anglo is a prefix indicating a relation to the Angles, England or the English people, as in the terms Anglo-Saxon, Anglo-American, Anglo-Celtic, Anglo-African and Anglo-Indian. It is often used alone, somewhat loosely, to refer to people of British Isles descent in The Americas, Australia and...

-Dutch

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

 lawyer

Lawyer

A lawyer, according to Black's Law Dictionary, is "a person learned in the law; as an attorney, counsel or solicitor; a person who is practicing law." Law is the system of rules of conduct established by the sovereign government of a society to correct wrongs, maintain the stability of political...

 and diplomat

Diplomat

A diplomat is a person appointed by a state to conduct diplomacy with another state or international organization. The main functions of diplomats revolve around the representation and protection of the interests and nationals of the sending state, as well as the promotion of information and...

.

He was the son of a minister of the Dutch Reformed Church

Dutch Reformed Church

The Dutch Reformed Church was a Reformed Christian denomination in the Netherlands. It existed from the 1570s to 2004, the year it merged with the Reformed Churches in the Netherlands and the Evangelical Lutheran Church in the Kingdom of the Netherlands to form the Protestant Church in the...

. He was educated at Leiden, removed to England about 1627, and was appointed to a lectureship in history at Cambridge

University of Cambridge

The University of Cambridge is a public research university located in Cambridge, United Kingdom. It is the second-oldest university in both the United Kingdom and the English-speaking world , and the seventh-oldest globally...

, where his attempt to justify the Dutch revolt against Spain led to his early resignation. In 1629 he was admitted a commoner of the College of Advocates. In 1632 he made his peace at court, and on two occasions acted as judge advocate, in the bishops war

Bishops' Wars

The Bishops' Wars , were conflicts, both political and military, which occurred in 1639 and 1640 centred around the nature of the governance of the Church of Scotland, and the rights and powers of the Crown...

 of 1640 and in 1642 in the army commanded by the Earl of Essex

Robert Devereux, 3rd Earl of Essex

Robert Devereux, 3rd Earl of Essex was an English Parliamentarian and soldier during the first half of the seventeenth century. With the start of the English Civil War in 1642 he became the first Captain-General and Chief Commander of the Parliamentarian army, also known as the Roundheads...

. In 1648 he became one of the judges of the admiralty court, and was sent on a diplomatic errand to the states general of Holland. He assisted in preparing the charge of high treason against Charles I

Charles I of England

Charles I was King of England, King of Scotland, and King of Ireland from 27 March 1625 until his execution in 1649. Charles engaged in a struggle for power with the Parliament of England, attempting to obtain royal revenue whilst Parliament sought to curb his Royal prerogative which Charles...

, and, while negotiating an alliance between the Commonwealth

Commonwealth of England

The Commonwealth of England was the republic which ruled first England, and then Ireland and Scotland from 1649 to 1660. Between 1653–1659 it was known as the Commonwealth of England, Scotland and Ireland...

 and the Dutch Republic

Dutch Republic

The Dutch Republic — officially known as the Republic of the Seven United Netherlands , the Republic of the United Netherlands, or the Republic of the Seven United Provinces — was a republic in Europe existing from 1581 to 1795, preceding the Batavian Republic and ultimately...

, was murdered at the Hague by royalist refugees. His remains were buried in Westminster Abbey

Westminster Abbey

The Collegiate Church of St Peter at Westminster, popularly known as Westminster Abbey, is a large, mainly Gothic church, in the City of Westminster, London, United Kingdom, located just to the west of the Palace of Westminster. It is the traditional place of coronation and burial site for English,...

, and moved in 1661 to St. Margaret

Margaret the Virgin

Margaret the Virgin, also known as Margaret of Antioch , virgin and martyr, is celebrated as a saint by the Roman Catholic and Anglican Churches on July 20; and on July 17 in the Orthodox Church. Her historical existence has been questioned; she was declared apocryphal by Pope Gelasius I in 494,...

's churchyard.