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 instructions gave her plausible deniability to attempt to avoid the direct stain of Mary's blood. Davison was arrested, thrown into the Tower of London, and found guilty of misprision. He was released nineteen months later after Cecil and Walsingham interceded on his behalf. Mary's request to be buried in France was refused by Elizabeth. Her body was embalmed and left in a secure lead coffin until her burial, in a Protestant service, at Peterborough Cathedral in late July 1587. Her entrails, removed as part of the embalming process, were buried secretly within Fotheringhay Castle. Her body was exhumed in 1612,