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
Duke of Beaufort Gaunt and Edward III. This statement was challenged after the analysis of the Y chromosomal DNA of the remains of King Richard III. Most living male heirs of The 5th Duke of Beaufort were found to carry a relatively common Y chromosome type, which is different from the rare lineage found in Richard III remains. The instance of female infidelity could have occurred anywhere in the numerous generations separating Richard III from the 5th Duke of Beaufort . Beaufort Castle was a possession of John of Gaunt, and the surname Beaufort was given to Gaunt's four legitimised children by his