Charles Brandon, 1st Duke of Suffolk Charles Brandon, 1st Duke of Suffolk Charles Brandon, 1st Duke of Suffolk, 1st Viscount Lisle, (22 August 1545) was the son of Sir William Brandon and Elizabeth Bruyn. Through his third wife Mary Tudor he was brother-in-law to Henry VIII, King of England. His father was the standard-bearer of Henry Tudor, Earl of Richmond who seized the throne as Henry VII. Suffolk died of unknown causes at Guildford. Charles Brandon was the second but only surviving son of Sir William Brandon, Henry Tudor's standard-bearer at the Battle of Bosworth Field, where he was slain by Richard III. His mother, Elizabeth
Edmund Tudor, 1st Earl of Richmond eldest of John of Gaunt's bastard sons, John Beaufort. She had been previously married to John de la Pole, whose father, William de la Pole, 1st Duke of Suffolk had intended to seek the claim to the throne of her and any children should Henry fail to produce any heirs. William was murdered in 1450, and the marriage between Margaret and John was annulled in the first months of 1453 to enable her to be remarried to Edmund. It was this marriage on 1 November 1455 at Bletsoe Castle which enabled any offspring to lay claim to the English throne