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 Clarence husband. After the Union of the Crowns in 1603, the holders of the title were also given titles including Scottish place names: St Andrews and Avondale. The title was first created for Lionel, a younger son of Edward III who in 1352 had married Elizabeth de Burgh, 4th Countess of Ulster, the sole heiress in a female line of Gilbert de Clare, 8th Earl of Gloucester. The "Clarence" was the Clare estates, and as owner of them by right of his wife Lionel was given that title. The Dukedom is currently vacant. While there were some speculations that it is