Henry VII of England Margaret Beaufort, Countess of Richmond. His father, Edmund Tudor, 1st Earl of Richmond, died three months before his birth. Henry's paternal grandfather, Owen Tudor, originally from the Tudors of Penmynydd, Isle of Anglesey in Wales, had been a page in the court of Henry V. He rose to become one of the "Squires to the Body to the King" after military service at the Battle of Agincourt. Owen is said to have secretly married the widow of Henry V, Catherine of Valois. One of their sons was Edmund Tudor, father of Henry VII. Edmund was created Earl of Richmond in
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