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
George Plantagenet, 1st Duke of Clarence became King of England as Edward IV. In that year George was made Duke of Clarence and invested as a Knight of the Garter, and in 1462 Clarence received the Honour of Richmond, a lifetime grant, but without the peerage title of Earl of Richmond. Despite his youth, he was appointed as Lord Lieutenant of Ireland in the same year. Having been mentioned as a possible husband for Mary, daughter of Charles the Bold, Clarence came under the influence of his first cousin Richard Neville, Earl of Warwick, and in July 1469 was married in Église Notre-Dame de Calais to