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
Edmund de la Pole, 3rd Duke of Suffolk Edmund de la Pole, 3rd Duke of Suffolk Edmund de la Pole, 3rd Duke of Suffolk, 6th Earl of Suffolk, (c. 1471 – 30 April 1513), Duke of Suffolk, was a son of John de la Pole, 2nd Duke of Suffolk and his wife Elizabeth of York. His mother was the second surviving daughter of Richard Plantagenet, 3rd Duke of York, and Cecily Neville. She was also a younger sister to Edward IV of England and Edmund, Earl of Rutland, as well as an older sister to Margaret of York, George Plantagenet, 1st Duke of Clarence, and Richard III of