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,
Malvasia span of only a few years after vintage. In the past, the names "Malvasia" and "Malmsey" occurred interchangeably. , however, "Malvasia" generally refers to unfortified white table or dessert wines produced from this grape, while "Malmsey" refers to a sweet variety of Madeira wine, though this is also sometimes called "Malvasia" or "Malvazia". Further confusion results from the fact that, in the recent past, the term "Malmsey" referred to any very sweet Madeira wine, regardless of the grape variety involved. This resulted from the devastation of Madeiran vineyards by phylloxera in the late 19th century, which greatly reduced the production