Poss. HM George I's 31-Great Aunt. U.S. President [WASHINGTON]'s 14-Great Grandmother. HRH Charles's 21-Great Grandmother. PM Churchill's 19-Great Grandmother. Lady Diana's 20-Great Grandmother. PM Cameron's 20-Great Grandmother. Gen. Pierpont Hamilton's 19-Great Grandmother. `Osawatomie' Brown's 18-Great Grandmother. Jamie's 24-Great Grandmother.