Duke of Northumberland (1551)

==Holders==
 	From 	Until 	Name 	Lifespan
1.	11 October 1551	18 August 1553	John Dudley, 1st Duke of Northumberland	1502-1553
==Other Titles Held==
*Earl of Warwick (1547), 1551-1553
*Viscount Lisle (1542), 1551-1553