Henry Nassau (1640–18 October 1708) was a second cousin of King William III of England and the Master of the Horse. He was Count of Nassau-de Lek, Lord Overkirk (formerly d'Auverquerque). Events December 1 - Portugal regains its independence from Spain and João IV of Portugal becomes king. ... October 18 is the 291st day of the year (292nd in leap years). ... // Events March 23 - James Francis Edward Stuart lands at the Firth of Forth July 1 - Tewoflos becomes Emperor of Ethiopia September 28 - Peter the Great defeats the Swedes at the Battle of Lesnaya Kandahar conquered by Mir Wais In Masuria one third of the population die during the plague J... William III of England (The Hague, 14 November 1650 – Hampton Court, 8 March 1702; also known as William II of Scotland and William III of Orange) was a Dutch aristocrat and a Protestant Prince of Orange from his birth, Stadtholder of the main provinces of the Dutch Republic from 28...

Henry was born in The Hague to Louis Nassau (illegitimate son of Maurice of Nassau, Prince of Orange) and his wife Elizabeth van Hoorn. He was baptised there on 16 December 1640. He married his wife, Frances van Aerssen, at The Hague on 2 October 1667, and resided afterwards in London, notable the House at the back, which later became 10 Downing Street. He was appointed Master of the King's Horse. Arms of The Hague Flag of The city of The Hague. ... Maurice of Nassau, Prince of Orange - portrait by Michiel Jansz van Mierevelt Maurice of Nassau (in Dutch Maurits van Nassau) (14 November 1567 – 23 April 1625), Prince of Orange (1618–1625), son of William the Silent and Princess Anna of Saxony, was born at the castle of Dillenburg. ... December 16 is the 350th day of the year (351st in leap years) in the Gregorian Calendar. ... Events December 1 - Portugal regains its independence from Spain and João IV of Portugal becomes king. ... October 2 is the 275th day (276th in leap years) of the year in the Gregorian Calendar, with 90 days remaining. ... // Events January 20 - Poland cedes Kyiv, Smolensk, and eastern Ukraine to Russia in the Treaty of Andrusovo that put a final end to the Deluge, and Poland lost its status as a Central European power. ... This article or section does not adequately cite its references or sources. ...

Henry died on 18 October 1708 at Roeselaere in modern-day Belgium and is buried at Ouderkerk aan den IJssel in Holland. His widow continued to live at the House at the back until her own death in 1720. October 18 is the 291st day of the year (292nd in leap years). ... // Events March 23 - James Francis Edward Stuart lands at the Firth of Forth July 1 - Tewoflos becomes Emperor of Ethiopia September 28 - Peter the Great defeats the Swedes at the Battle of Lesnaya Kandahar conquered by Mir Wais In Masuria one third of the population die during the plague J... Holland is a region in the central-western part of the Netherlands with 6,07 million inhabitants. ...

Their children included:

• Henry Nassau d'Auverquerque, 1st Earl of Grantham