HM George I's 16-Great Grandfather. Poss. HRE Ferdinand I's 14-Great Grandfather. HRE Charles VI's 16-Great Grandfather. U.S. President [WASHINGTON]'s 19-Great Grandfather. PM Churchill's 24-Great Grandfather. Lady Diana's 24-Great Grandfather. `Red Baron' Richthofen's 21-Great Grandfather. `Osawatomie' Brown's 28-Great Grandfather. Jamie's 27-Great Grandfather.