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
Francis II, Duke of Brittany (also known as Alan the Black) the 1st Earl of Richmond. After Alan, the title and its possessions (the Honour of Richmond) were typically bestowed upon the Dukes of Brittany, with a few interruptions, through the ducal reign of John IV, which ended in 1399. After John IV, the English kings would bestow the title Earl of Richmond on nobles other than the Dukes of Brittany, including Edmund Tudor, Henry Tudor's father. However the dukes of Brittany from John V through Francis II would continue to use the titulary Earl of Richmond. It is possible that Francis willed whatever remained