Frederick Nassau de Zuylestein

Frederick Nassau de Zuylestein
Frederik van Nassau-Zuylestein

Portrait by Sir Peter Lely
Personal details
Born 1624
Died 12 October 1672
Woerden, Dutch Republic
Spouse(s) Mary Killegrew

William Nassau de Zuylestein, 1st Earl of Rochford

Hendrik van Nassau-Zuylestein

Frederick of Nassau Zuylestein (1624–1672) was an illegitimate son of Frederick Henry, Prince of Orange, by Margaretha Catharina Bruyns,


Castle Zuylestein in 1650, later destroyed by bomb attack during World War II.

Frederick was born in 1624 out of wedlock to Frederick Henry, Prince of Orange (1584 – 1647) and Margaretha Catharina Bruyns (1595–1625), who was the daughter of Ludolph Bruyns, mayor of Emmerich.

On the 15th of March 1640, Frederick's father gave him Castle Zuylestein (also spelled Zuylenstein), situated about twenty miles east of the city of Utrecht; with it he also gave him the title Heer van Zuylestein and made him captain of infantry for the state.
In 1659, Frederick was made governor of the household of his nephew, William III of Orange. Through lobbying by Johan de Wit, William III became the state's ward in 1666, and Frederick was dismissed. His dismissal was because he was married to an Englishwoman and was under suspicion of pro-English leanings. In April 1672 (the rampjaar) he became general of the infantry and in August he became involved in the murders of Johan and Cornelis de Wit.

Marriage and children

On the 16th of October 1648, Frederick married Mary Killigrew (born 1627) in The Hague. She was a daughter of Sir William Killigrew (a favourite of Charles I and Charles II of England) and Mary Hill, of Honilay. She was a first cousin of Charles II's illegitimate daughter, the Countess of Yarmouth. She had moved to the Netherlands in February 1644, aged barely seventeen, as a maid of honour to Mary, princess royal of England and princess of Orange.

Frederick and Mary had two children:


In October 1672 Frederick died near Woerden in a battle with the French known as the Battle of Kruipin.[1]


Prince Frederick Henry and his wife Amalia of Solms-Braunfels with their three youngest daughters, portrayed by Gerard van Honthorst.

Frederick was an illegitimate son of Frederick Henry, Prince of Orange, born to him before he married. Frederick had nine legitimate half-siblings with whom he shared his father. Their mother was his father's wife Amalia of Solms-Braunfels.


Frederick used the arms below.


William I "the Silent"
(1533-1584), Prince of Orange 1544, Stadholder of Holland, Zealand & Utrecht, assassinated by Spanish agent]]

Frederick Henry
Prince of Orange, 1625,
Stadtholder of Holland, Zeeland, & etc.

Margaretha Catharina Bruyns
Frederick of Nassau
Lord of Zuylestein
Mary Killigrew
daughter of Sir William Killigrew
William van Nassau
(1649 – 1708)
1st Earl of Rochford
Hendrik van Nassau
(ca 1650 – 1673)
Heer van Leersum
Anna Nassau de Zuylestein
(ca 1681 – 1701)
William Nassau de Zuylestein
2nd Earl of Rochford
Frederik Nassau de Zuylestein
heer van Zuylestein, Leersum en Waayenstein 1709-1738,
3rd Earl of Rochford,1710
Maurits van Nassau-Zuylestein
(1685 – 1720)
Colonel, English Army
Maria van Nassau-Zuylestein
(1687 – 1765)
married baron Godard Adriaan van Reede (16xx – 1730), heer van Herreveld and 1st Earl of Athlone, son of Godard van Reede heer van Ginckel (1644-1703)
Elizabeth van Nassau-Zuylestein
(1688 – ca 1720)
(1688 – 1759)
married Frederik Christiaan van Reede, baron van Reede, 2nd Earl of Athlone
Frederik Hendrik (Henry) van Nassau-Zuylestein
(1692? – 1740)
William Nassau de Zuylestein
4th Earl of Rochford
British courtier, diplomat and statesman
illeg. desc.
Richard Savage Nassau de Zuylestein
(1723 – 1780)
Member of Parliament, 1747-1754, 1774-1780
Frederick Nassau[3] · [4]
Master of St. Osyth Priory
Ann[3] · [4]
Mary[3] · [4]
William Henry Nassau
4th Earl of Rochford
George Richard Savage Nassau
Lucy Nassau
William Frederick Nassau[3] · [4]
Master of St. Osyth Priory
John Augustus Nassau[3] · [4]
Ann Nassau[3] · [4]
Elizabeth Catherina Nassau[3] · [4]
Mistress of St. Osyth Priory
married John Roberts Kirby
Eliza Nassau[3] · [4]
Rochford Augustus Nassau[3] · [4]
Frederik "Frank" Rochford Nassau[3] · [4]
Herbert Arthur Nassau[3] · [4]
Harold Charles Nassau[3] · [4]
Letta Mary Nassau[3] · [4]
Nellie Nassau[3] · [4]
Ethel Violet Nassau[3] · [4]
(1896 - )
married Frederick Savage
Doris Elsie Nassau[3] · [4]
married Stanley Philip Painter
Frederik (Freddie) Herbert Nassau[3] · [4]
one daughter [5]
Herbert John Nassau[3] · [4]
2 daughters[6]



  1. Battle of Kruipin in the Canon of Utrecht
  2. Rietstap, Johannes Baptist (1861). Armorial général, contenant la description des armoiries des familles nobles et patriciennes de l'Europe: précédé d'un dictionnaire des termes du blason. G.B. van Goor. p. 746.
  3. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 MAREK, Miroslav (2012). "GENEALOGY.EU, The House of Nassau". GENEALOGY.EU. Retrieved 2016-11-18.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 "". ANCESTRY.COM. 2016. Retrieved 2016-11-18.
  5. Note: still living, probably not appropriate to post
  6. Note: still living, probably not appropriate to post
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