ボズワースの戦い
Sir Robert Brackenbury (died 22 August 1485) was an English courtier, who was Constable of the Tower of London during the reign of Richard III. He is believed to have been responsible for enabling the (presumed) murders of the Princes in the Tower, though there is no conclusive evidence to prove it. He died defending the King at the Battle of Bosworth Field in 1485.