John Dudley, 2nd Earl of Warwick (c.1527--21 October 21 1554) was the heir of John Dudley, 1st Duke of Northumberland, after his eldest brother Henry was killed 1544 in the wars in France.
John Dudley, 2nd Earl of Warwick (c.1527--21 October 21 1554) was the third son of John Dudley, 1st Duke of Northumberland and his wife Jane Guildford. He became his father's heir after his eldest brother Henry was killed 1544 in the wars in France.