Poss. HM George I's 20-Great Grandfather. Poss. HRE Charles VI's 22-Great Grandfather. Poss. U.S. President [WASHINGTON]'s 26-Great Grandfather. Poss. HM Margrethe II's 28-Great Grandfather. Poss. Wm. von Bismarck's 26-Great Grandfather. Poss. `Osawatomie' Brown's 31-Great Grandfather.