Poss. HM George I's 30-Great Uncle. U.S. President [TAYLOR]'s 15-Great Grandfather. HRH Charles's 20-Great Grandfather. PM Churchill's 19-Great Grandfather. Lady Diana's 18-Great Grandfather. PM Cameron's 20-Great Grandfather. Poss. `Osawatomie' Brown's 33-Great Uncle. Poss. Jamie's 19-Great Grandfather.