HM George I's 14-Great Grandfather. HRE Charles VI's 16-Great Grandfather. U.S. President [MONROE]'s 22-Great Grandfather. PM Churchill's 22-Great Grandfather. Lady Diana's 22-Great Grandfather. PM Cameron's 24-Great Grandfather. HM Margrethe II's 21-Great Grandfather. `Red Baron' Richthofen's 19-Great Grandfather. Poss. Jamie's 26-Great Grandfather.