I. ˈwil-yəm biographical name
name of 4 kings of England: I ( the Conqueror ) circa 1028-1087 (reigned 1066-87); II ( Ru·fus ˈrü-fəs ) circa 1056-1100 (reigned 1087-1100); III 1650-1702 (reigned 1689-1702—see Mary ); IV 1765-1837 (reigned 1830-37)
II. biographical name
1882-1951 Friedrich Wilhelm Victor August Ernst crown prince of Germany (1888-1918)