Charles Brandon, 1st Duke of Suffolk number of illegitimate children: 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
House of Tudor Catholic Mary I. On 1 November 1455, John Beaufort's granddaughter, Margaret Beaufort, Countess of Richmond and Derby, married Henry VI's maternal half-brother Edmund Tudor, 1st Earl of Richmond. It was his father, Owen Tudor (), who abandoned the Welsh patronymic naming practice and adopted a fixed surname. When he did, he did not choose, as was generally the custom, his father's name, Maredudd, but chose that of his grandfather, Tudur ap Goronwy, instead. This name is sometimes given as "Tewdwr", the Welsh form of Theodore, but Modern Welsh "Tudur", Old Welsh "Tutir" is originally not a variant but a different