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
John Beaufort, 1st Earl of Somerset estates unless he had lived until after 1415. In 1404, he was named Constable of England. John Beaufort and his wife Margaret Holland, the daughter of Thomas Holland, 2nd Earl of Kent and Alice FitzAlan, had six children. His granddaughter Lady Margaret Beaufort married Edmund Tudor, 1st Earl of Richmond, the son of Dowager Queen Catherine of Valois by Owen Tudor. Somerset died in the Hospital of St Katharine's by the Tower. He was buried in St Michael's Chapel in Canterbury Cathedral. His children included the following: As a legitimised grandson of King Edward III, Beaufort bore that king's royal