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
Earl of Richmond facto 'earls of Richmond', though they were not so in the later strictly legal sense. Through the reign of King Henry I few earldoms had been created. King Stephen's reign was marked by the creation of several new earldoms. Stephen of Tréguier's son Alan (c. 1116–1146), was the first of these lords to be styled 'Earl of Richmond' in a strictly legal sense. King Stephen also created Alan 1st Earl of Cornwall although this title would be forfeit in 1141 after the Battle of Lincoln. Alan of Brittany is recorded as riding at King Stephen's side in the Battle of