William FitzWilliam (Lord Deputy)

Sir William FitzWilliam (1526 – 22 June 1599) was an English statesman who served as 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. He has been noted for his corruption during his final term as Lord Deputy, which enabled the Irish confederacy during the early years of the Nine Years' War.