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
England in the Middle Ages nine months and both the English political system and the military situation in France began to unravel. A sequence of bloody civil wars, later termed the Wars of the Roses, finally broke out in 1455, spurred on by an economic crisis and a widespread perception of poor government. Edward IV, leading a faction known as the Yorkists, removed Henry from power in 1461 but by 1469 fighting recommenced as Edward, Henry, and Edward's brother George, backed by leading nobles and powerful French supporters, vied for power. By 1471 Edward was triumphant and most of his rivals were dead. On his