William FitzWilliam (Lord Deputy) William FitzWilliam (Lord Deputy) Sir William FitzWilliam (1526–1599) was an English Lord Justice of Ireland and afterwards Lord Deputy of Ireland. In 1587, as Governor of Fotheringhay Castle, he supervised the execution of the death sentence on Mary, Queen of Scots. He was the Member of Parliament for Peterborough and represented County Carlow in the Irish House of Commons. He lived at Gainspark, Essex, and Milton Hall. FitzWilliam was born at Milton Hall, Northamptonshire, the eldest son of Sir William (d. 1576) and grandson of William Fitzwilliam, Sheriff of London, who had been treasurer and chamberlain to Cardinal Wolsey and
Christopher Hatton and on one memorable occasion in December 1584 he led 400 kneeling members of the House of Commons in a prayer for the Queen's safety. Hatton was a member of the court which tried Anthony Babington in 1586, and was one of the commissioners who found Mary, Queen of Scots, guilty of treason in the following year. He vigorously denounced the Queen of Scots in Parliament, and advised William Davison to forward the warrant for her execution to Fotheringhay. In 1587 Hatton was made Lord Chancellor. Though he had no great knowledge of the law, he appears to have acted