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
Mary, Queen of Scots (opera) Stewart, Earl of Moray; her husband Lord Darnley; and her seducer the Earl of Bothwell. These relationships are foreshadowed in her Act 1 aria "The Three Stars of my Firmament". The libretto takes some liberties with the actual historical facts. The character Lord Gordon is fictitious although partly based on Lord Huntly. The real Earl of Moray was murdered two years later than depicted in the opera. Another character in the opera, Cardinal Beaton, was already dead before the opera's action begins in 1561. A commission from Scottish Opera, "Mary, Queen of Scots" was given its world premiere by the