Wars of the Roses the Hundred Years' War, unfolding the structural problems of feudalism, combined with the mental infirmity and weak rule of King Henry VI which revived interest in Richard of York's claim to the throne. Historians disagree on which of these factors to identify as the main reason for the wars. With the Duke of York's death, the claim transferred to his heir, Edward, who later became the first Yorkist king of England, as Edward IV. He reigned from 1461, interrupted by a Lancastrian uprising and reinstallment of Henry VI in 1470 to 1471, until his sudden death in 1483. His son
Hugh Courtenay (d.1471) Hugh Courtenay (d.1471) Sir Hugh Courtenay (c.1427 – 6 May 1471) of Boconnoc, Cornwall, was MP for Cornwall in 1446 and 1449. He was beheaded after the Battle of Tewkesbury in 1471. He was the second son of Sir Hugh Courtenay (c.1358-1425), of Haccombe and Bampton, Devon, MP and Sheriff of Devon (a grandson of Hugh de Courtenay, 2nd/10th Earl of Devon (1303–1377) and the younger brother of Edward de Courtenay, 3rd/11th Earl of Devon (1357–1419), "The Blind Earl"), by his 4th wife Maud Beaumont (d. 3 July 1467), daughter of Sir William Beaumont of Shirwell by Isabel Willington, daughter