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
Henry VI of England a resistance to Edward, he was captured by Edward's forces in 1465 and imprisoned in the Tower of London. Henry was restored to the throne in 1470, but Edward retook power in 1471, killing Henry's only son and heir in battle and imprisoning Henry once again. Having "lost his wits, his two kingdoms, and his only son", Henry died in the Tower during the night of 21 May, possibly killed on the orders of Edward. Miracles were attributed to Henry after his death, and he was informally regarded as a saint and martyr until the 16th century. He left a