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
Lady Margaret Beaufort Jasper and Edmund Tudor. In her will, made in 1472, Margaret refers to Edmund Tudor as her first husband. Under canon law, Margaret was not bound by the marriage contract as she was entered into the marriage before reaching the age of twelve. Even before the annulment of her first marriage, Henry VI chose Margaret as a bride for his half-brother, Edmund Tudor, 1st Earl of Richmond. Edmund was the eldest son of the king's mother, Catherine of Valois, by Owen Tudor. Margaret was 12 when she married the 24-year-old Edmund Tudor on 1 November 1455. The Wars of the