King George I ( December 24, 1845 - March 18, 1913 ) King of Greece II From March 30, 1863 to March 18, 1913 , King George was a Danish prince who was chosen by the Greek National Assembly as king of Greece with the support of Great Britain, Russia and France , assassinated in 1913 and succeeded by his son King Constantine The first
He is the grandfather of George II , Alexander I , Paul of Greece , and Prince Philip, Duke of Edinburgh, husband of Queen Elizabeth II of the United Kingdom , and he is thus the ancestor of the heirs of the United Kingdom (Britain).