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 English estates. In 1241 Henry III granted the estates of Richmond to Peter of Savoy (1203–1268), uncle of his queen consort, Eleanor of Provence. Peter was thereafter described as Earl of Richmond by contemporary chroniclers. By his will, Savoy left Richmond to his niece, Eleanor, who transferred it to the crown. That year, 1268, Henry III granted the earldom to John I, Duke of Brittany (1217–1286), son of Pierre Mauclerc. The title was recreated for John I's heir, John II, Duke of Brittany. In 1306 the title was granted to his son John of Brittany who entered into the service