the first head of state to be assassinated by handgun. (The Scottish Regent Moray had been shot 13 years earlier in the first firearm assassination.) Burial and tomb Traditionally, members of the Nassau family were buried in Breda, but as that city was under royal control when William died, he was buried in the New Church in Delft. The monument on his tomb was originally very modest, but it was replaced in 1623 by a new one, made by Hendrik de Keyser and his son Pieter. Since then, most of the members of the House of Orange-Nassau, including all Dutch monarchs, have been buried in the same church. His great-grandson William III and II, King of England, Scotland and Ireland, and Stadtholder in the Netherlands, was buried in Westminster Abbey. Legacy Succession and family ties Philip William, William's eldest son by his first marriage, to Anna of Egmond, succeeded him as the Prince of Orange. However, as Philip William was a hostage in Spain and had been for most of his life, his brother Maurice of Nassau was appointed Stadholder and Captain-General at the suggestion of Johan van Oldenbarneveldt, and as a counterpoise to the Earl of Leicester. Phillip William died in Brussels on 20 February 1618 and was succeeded by his half-brother Maurice, the eldest son by William's second marriage, to Anna of Saxony, who became Prince of Orange. A strong military leader, he won several victories over the Spanish. Van Oldenbarneveldt managed to sign a very favourable twelve-year armistice in 1609, although Maurice was unhappy with this. Maurice was a heavy drinker and died on 23 April 1625 from liver disease. Maurice had several sons by Margaretha van Mechelen, but he never married her. So, Frederick Henry, Maurice's half-brother (and William's youngest son from his fourth marriage, to Louise de Coligny) inherited the title of Prince of Orange. Frederick Henry continued the battle against the Spanish. Frederick Henry died on 14 March 1647 and is buried with his father William "The Silent" in Nieuwe Kerk, Delft. The Netherlands became formally independent after the Peace of Westphalia in 1648. The son of Frederick Henry, William II of Orange succeeded his father as stadtholder, as did his son, William III of Orange. The latter also became king of England, Scotland and Ireland from 1689. Although he was married to Mary II, Queen of Scotland and England for 17 years, he