Edward Seymour, Lord Beauchamp Edward Seymour, Lord Beauchamp Edward Seymour, Lord Beauchamp of Hatch (21 September 1561 – 21 July 1612) had a theoretically strong claim to the throne of England through his mother, but whose legitimacy was questioned. He was the son of Edward Seymour, 1st Earl of Hertford (1539–1621), by his wife Lady Catherine Grey (died 1568), younger sister of Lady Jane Grey, "The Nine Day Queen". His grandfather was Edward Seymour, 1st Duke of Somerset (executed 1552), all of whose titles became forfeit on his attainder by Parliament, during the reign of his nephew King Edward VI (1547–1553). His father was
Mary Seymour, Duchess of Somerset Mary Seymour, Duchess of Somerset Mary Seymour, Duchess of Somerset (22 October 1697 – 1 February 1768), formerly Mary Webb, was the wife of Edward Seymour, 8th Duke of Somerset, and the mother of both the 9th and 10th dukes. Mary Webb was born at Seend, Wiltshire, the only child of Daniel Webb, of Monkton Farleigh, and his wife Elizabeth Somner, who was the daughter of John Somner of Seend. She married the duke, then Sir Edward Seymour (6th Baronet Seymour), on 8 March 1716 or 5 March 1717, at Monkton Farleigh. In December 1740, Seymour inherited his father's estates