Edmund Beaufort (died 1471) Edmund Beaufort (died 1471) Edmund Beaufort (c. 1438 – 6 May 1471), styled 4th Duke of Somerset, was an English nobleman, and a military commander during the Wars of the Roses, in which he supported King Henry VI. Edmund Beaufort, born about 1438, was the son of Edmund Beaufort, 2nd Duke of Somerset, and Eleanor, daughter of Richard Beauchamp, 13th Earl of Warwick and widow of Thomas, fourteenth baron Roos of Hamlake. After the defeat of the Lancastrians in 1461, Edmund was brought up in France with his younger brother John Beaufort, Marquess of Dorset, and on the execution of
Edmund Beaufort (died 1471) due to occasional insanity she assisted in his duties, Somerset was unenthusiastic over the reconciliation and made little effort to co-operate. In fact his failure to hold London against Edward IV was a decisive moment, leading to the Battle of Barnet (14 April 1471) and the death of Warwick. Some sources say he was present at Barnet, but this is an error. Fleeing west towards Wales to seek help from Jasper Tudor, but halted by the Yorkist army at the Battle of Tewkesbury (4 May 1471), he commanded the van of the Lancastrian army at the battle. His position was