1st Earl of Westmorland (d.1425) to Joan Beaufort, a legitimised daughter of John of Gaunt, 4th son of King Edward III). This coat, when he was made Marquis of Montagu, was later augmented with further quarterings. Notes References Bibliography External links |- 1430s births 1471 deaths 15th-century English nobility Marquesses in the Peerage of England Earls of Northumberland Knights of the Garter People of the Wars of the Roses English military personnel killed in action John Younger sons of earls Burials at Bisham Abbey Barons Montagu