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.
Duke of Beaufort Gaunt and Edward III. This statement was challenged after the analysis of the Y chromosomal DNA of the remains of King Richard III. Most living male heirs of The 5th Duke of Beaufort were found to carry a relatively common Y chromosome type, which is different from the rare lineage found in Richard III remains. The instance of female infidelity could have occurred anywhere in the numerous generations separating Richard III from the 5th Duke of Beaufort . Beaufort Castle was a possession of John of Gaunt, and the surname Beaufort was given to Gaunt's four legitimised children by his