Edmund Beaufort (died 1471) his elder brother Henry Beaufort, 3rd Duke of Somerset, Edmund is said to have succeeded as 4th Duke by Lancastrians in February 1471, but his brother's attainder was never reversed, and his titles remained forfeit. In a proclamation dated 27 April 1471 Edmund is spoken of as "Edmund Beaufort, calling himself duke of Somerset". In October 1470 Beaufort returned from France when King Edward IV was driven from the throne after the Earl of Warwick's defection and alliance with Queen Margaret and the restoration of King Henry VI, who was the first monarch ousted by the family feud, and whom
Wars of the Roses again won complete victories at Barnet (14 April 1471), where Warwick was killed, and Tewkesbury (4 May 1471) where the Lancastrian heir, Edward of Westminster, Prince of Wales was killed, or perhaps executed after the battle. Queen Margaret was escorted to London as a prisoner and Henry was murdered in the Tower of London several days later, ending the direct Lancastrian line of succession. A period of comparative peace followed, ending with the unexpected death of King Edward in 1483. His surviving brother, Richard, Duke of Gloucester, first moved to prevent the unpopular Woodville family of Edward's widow from participating