Ambrose Dudley, 3rd Earl of Warwick, KG was an English nobleman and general, and an elder brother of Queen Elizabeth I's favourite, Robert Dudley, Earl of Leicester. Their father was John Dudley, Duke of Northumberland, who led the English government from 1550–1553 under Edward VI and unsuccessfully tried to establish Lady Jane Grey on the English throne after the King's death in July 1553. Wikipedia