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
History of England England until 1461. Henry's cousin deposed Henry in 1461 to became Edward IV. He defeated the Lancastrians at the Battle of Mortimer's Cross. He was briefly expelled from the throne in 1470–1471 when Richard Neville, Earl of Warwick, brought Henry back to power. Six months later, Edward defeated and killed Warwick in battle and reclaimed the throne. Henry was imprisoned in the Tower of London and died there. Edward went a little way to restoring the power of the Crown. Edward died in 1483, only 40 years old. His eldest son and heir Edward V, aged 13, could not succeed