HM George I's 14-Great Grandfather. HRE Charles VI's 15-Great Grandfather. U.S. President [MONROE]'s 23-Great Grandfather. PM Churchill's 22-Great Grandfather. Lady Diana's 23-Great Grandfather. PM Cameron's 23-Great Grandfather. HM Margrethe II's 21-Great Grandfather. Wm. von Bismarck's 19-Great Grandfather. Poss. Jamie's 27-Great Grandfather.