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,
Parvez Butt had allowed the Pakistan Atomic Energy Commission to amply use nuclear energy for improving the performance of agriculture, industrial, health, education and environment sectors. Butt was very close to then-Prime Minister of Pakistan, Shaukat Aziz. Parvez Butt maintained a close association with Prime Minister Aziz until Butt's term to be completed. Parvez Butt submitted a long-term nuclear power plant project to Prime Minister Aziz, who allowed PAEC to established more both civilian and military purpose nuclear power plants. Butt also assisted Prime Minister Aziz to launch work on the 325-megawatt plant in Chashma, which is the second to be built