Edward IV of England Richard, Duke of Gloucester (later King Richard III of England), were married to Isabel Neville and Anne Neville. Both were daughters of Warwick by Anne Beauchamp and rival heirs to the considerable inheritance of their still-living mother, leading to a dispute between the brothers. In 1478 George was eventually found guilty of plotting against Edward, imprisoned in the Tower of London, and privately executed on 18 February 1478. According to a long-standing tradition, he was "drowned in a butt of Malmsey wine". Edward did not face any further rebellions after his restoration, as the Lancastrian line had virtually been extinguished.
Lionel of Antwerp, 1st Duke of Clarence English royal family and was the mother of Richard Plantagenet, 3rd Duke of York. Even though Richard was a descendant in the male line of Edward III, the House of York based its claim to the English throne on descent through the female line from Lionel to establish a lasting blood line. (Edward's first-born son, the Black Prince, had no legitimate descendants past his two sons Edward of Angoulême and King Richard II.) Lionel was the ancestor of Kings Edward IV, Edward V, Richard III and all later British monarchs except for Henry VII, whose wife Elizabeth of York was