House of York Warwick himself changed sides, and supported Margaret of Anjou and the king's jealous brother George, Duke of Clarence, in briefly restoring Henry in 1470-71. However, Edward regained his throne, and the House of Lancaster was wiped out with the death of Henry VI himself, in the Tower of London in 1471. In 1478, the continued trouble caused by Clarence led to his execution in the Tower of London; popularly he is thought to have been drowned in a butt of malmsey wine. On Edward's death in 1483, the crown passed to his twelve-year-old son Edward. Edward IV's younger brother Richard,
Duke of Clarence and Avondale the last royal dukedom to be created with two territorial designations. The Duke died of pneumonia in 1892 and the title again became extinct. Duke of Clarence and Avondale Duke of Clarence and Avondale was a title awarded to a prince of the British Royal Family; the creation was in the Peerage of the United Kingdom. 'Clarence' is believed to refer to Clare in Suffolk; 'Avondale' refers to the valley of the Avon Water in Scotland. While there had previously been several creations of Dukes of Clarence (and one Duke of Clarence and St Andrews), the sole creation of a