Duke of Somerset years after losing his position as Lord Protector, his titles were forfeited and he was beheaded on 22 January 1552. He was replaced in the minority government of Edward VI by John Dudley, Duke of Northumberland, whose pragmatic style contrasted with Seymour's mixture of idealism and arrogance. In 1644 Charles I granted the earldom of Glamorgan to Edward Somerset (1613–1667). He was a descendant of Charles Somerset, the illegitimate son of Henry Beaufort, 3rd Duke of Somerset. In return for obtaining military help from Ireland he promised Edward the title of Duke of Somerset. Under the Commonwealth Edward was banished
Edward Seymour, 1st Duke of Somerset to throw off the Protector within two years and "bear rule as other kings do"; but Edward, schooled to defer to the Council, failed to co-operate. In April 1547, using Edward's support to circumvent Somerset's opposition, Thomas Seymour secretly married Henry VIII's widow Catherine Parr, whose Protestant household included the 11-year-old Lady Jane Grey and the 13-year-old Princess Elizabeth. In summer 1548, a pregnant Catherine Parr discovered Thomas Seymour embracing Princess Elizabeth. As a result, Elizabeth was removed from Catherine Parr's household and transferred to Sir Anthony Denny's. That September, Catherine Parr died in childbirth, and Thomas Seymour promptly resumed