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
Edmund Tudor, 1st Earl of Richmond of the King within Wales. This resulted in a long-held affection for the family in that country. The formal investiture of the duo took place in the Tower of London on 5 January 1453. Later that year on 6 March, they took their seats in the Parliament of England as the head of all the Earls in the court. After a petition by the House of Commons of England, both Jasper and Edmund were recognised officially as legitimate half-brothers of the King and the statutory disabilities attributed with being considered Welsh were removed. Throughout 1452 and 1453, they were given