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
Otto III, Duke of Brunswick-Lüneburg heir because his only son had already drowned as a child in the River Ilmenau. Otto had the following children from his marriage to Matilda of Mecklenburg (1293–1358), daughter of Henry II, Lord of Mecklenburg: Otto III, Duke of Brunswick-Lüneburg Otto III, Duke of Brunswick-Lüneburg ( 1296 – 19 August 1352) was Prince of Lüneburg from 1330 to 1352. Otto was born about 1296 as the second son of Otto the Strict and his wife Matilda of Bavaria, and was introduced to the business of government by his father as early as 1314. The stipulation by his father in 1315