Margaret Beaufort noblewoman; Mother of King Henry VII (1443–1509) Parents Margaret Beauchamp of Bletso John Beaufort, 1st Duke of Somerset Children Henry VII of England Siblings John Welles, 1st Viscount Welles Mary|Margaret St.John Sir John St. John Agnes St. John Edith St. John Elizabeth St. John Mary St. John Oliver St. John John of Somerset Thomasine Beaufort Partners John de la Pole, 2nd Duke of Suffolk Edmund Tudor, 1st Earl of Richmond Thomas Stanley, 1st Earl of Derby Sir Henry Stafford