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 Edmund had been sent to Wales to ensure that the King's authority was enforced there after Gruffydd ap Nicholas had begun to move against other holdings. Gryffydd made war with the troops under Edmund, capturing the castles at Aberystwyth, Carmarthen and Carreg Cennen by June 1456. The rebellion didn't last long, and by early August, Edmund's forces had retaken those castles although minor skirmishes continued for several months longer. While Edmund was in Wales, the King had deposed York. In retaliation, York sent 2,000 men under William Herbert on 10 August to take South Wales. When they arrived at Carmarthen