George Plantagenet, 1st Duke of Clarence not present – Edward himself prosecuted his brother, and demanded that Parliament pass a Bill of Attainder against his brother, declaring that he was guilty of "unnatural, loathly treasons" which were aggravated by the fact that Clarence was his brother, who, if anyone did, owed him loyalty and love. Following his conviction, he was "privately executed" at the Tower on 18 February 1478, by tradition in the Bowyer Tower, and soon after the event, the rumour gained ground that he had been drowned in a butt of Malmsey wine. Richard III biographer Paul Murray Kendall believes that the reason that
Richard Neville, 16th Earl of Warwick Lancastrian forces of Queen Margaret and Prince Edward at the Battle of Tewkesbury, where the prince was killed. Soon afterwards, it was reported that King Henry VI had also died in the Tower. With the direct Lancastrian line exterminated, Edward could reign safely until his death in 1483. Warwick's offices were divided between King Edward's brothers George, Duke of Clarence (who had married Warwick's daughter Isabel Neville), and Richard, Duke of Gloucester, the future Richard III (who would marry Warwick's daughter Anne Neville). Clarence received the chamberlainship of England and the lieutenancy of Ireland, while Gloucester was made Admiral of