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
Edmund Sheffield, 1st Earl of Mulgrave in the streets of Norwich during Kett's Rebellion. He married, firstly, Ursula Tyrwhitt, by whom he had at least one daughter, Mary Sheffield and, secondly, Mariana Irwin. He was succeeded by his grandson, likely via his second wife Mariana Irwin, Edmund Sheffield, 2nd Earl of Mulgrave. Edmund Sheffield, 1st Earl of Mulgrave Edmund Sheffield, 1st Earl of Mulgrave, 3rd Baron Sheffield, KG (c. 1564 – 1646) was a British peer and Member of Parliament, who served as Lord Lieutenant of Yorkshire from 1603 to 1619 and Vice-Admiral of Yorkshire from 1604 to 1646. He was created Earl of Mulgrave in