House of Tudor Richmond on 15 December 1449 and was married to Lady Margaret Beaufort, the great-granddaughter of John of Gaunt, the progenitor of the house of Lancaster; Jasper became the first Earl of Pembroke on 23 November 1452. Edmund died on 3 November 1456. On 28 January 1457, his widow Margaret, who had just attained her fourteenth birthday, gave birth to a son, Henry Tudor, at her brother-in-law's Pembroke Castle. Henry Tudor, the future Henry VII, spent his childhood at Raglan Castle, the home of William Herbert, 1st Earl of Pembroke, a leading Yorkist. Following the murder of Henry VI and death
Ralph Neville, 1st Earl of Westmorland a lifetime grant of the honour of Richmond on 20 October (although the grant was not accompanied by a grant of the title Earl of Richmond), and several wardships. Before 4 December he was appointed to the King's council. In March 1401, Westmorland was one of the commissioners who conducted negotiations for a marriage between the King's eldest daughter, Blanche of England, and Louis, son of Rupert, King of the Romans, and in 1403 was made a Knight of the Garter, taking the place left vacant by the death of Edmund of Langley, 1st Duke of York. According to Tuck,