Seymour family V's visit to England in 1522. The eldest of his ten children was Edward Seymour, 1st Duke of Somerset, the famous Protector in the reign of Edward VI; his third son was Thomas Seymour, Baron Seymour of Sudeley; and his eldest daughter Jane was third wife of King Henry VIII, and mother of Edward VI. The Protector was married twice; and, probably owing to the adultery of his first wife whom he repudiated about 1535, his titles and estates were entailed first on the issue of his second marriage with Anne, daughter of Sir Edward Stanhope. The Protector's eldest surviving
William Seymour, 2nd Duke of Somerset his grandson William Seymour, 3rd Duke of Somerset. William Seymour, 2nd Duke of Somerset William Seymour, 2nd Duke of Somerset, (1588 – 24 October 1660) was an English nobleman and Royalist commander in the English Civil War. Seymour was the son of Edward Seymour, Lord Beauchamp of Hache (who predeceased his own father) by his wife Honora Rogers. He was the grandson of Edward Seymour, 1st Earl of Hertford by his wife Lady Catherine Grey, a sister of Lady Jane Grey, "The Nine Days Queen", which thus gave him a distant claim to the throne through Catherine's descent from Mary