Poss. HM George I's 15-Great Grandfather. Poss. U.S. President [GARFIELD]'s 21-Great Uncle. HRH Charles's 25-Great Grandfather. PM Churchill's 24-Great Grandfather. Lady Diana's 26-Great Grandfather. Louis XVII's 19-Great Grandfather. Poss. `Osawatomie' Brown's 22-Great Uncle. Poss. Jamie's 24-Great Uncle.