Henry Beaufort, 3rd Duke of Somerset was a commander during which wars to control the throne of England between 1455-1487?
Henry Beaufort, 3rd Duke of Somerset Henry Beaufort, 3rd Duke of Somerset (26 January 1436 – 15 May 1464) was an important Lancastrian military commander during the English Wars of the Roses. He is sometimes numbered the 2nd Duke of Somerset, because the title was re-created for his father after his uncle died. He also held the subsidiary titles of 5th Earl of Somerset, 2nd Marquess of Dorset and 2nd Earl of Dorset.
Joan Beaufort, Countess of Westmorland Joan Beaufort, Countess of Westmorland (  1379 – 13 November 1440), was the fourth of the four children (and only daughter) of John of Gaunt, 1st Duke of Lancaster, and his mistress, later wife, Katherine Swynford. In her widowhood, she was a powerful landowner in the North of England.