President Michael Hainisch (ruler of AUSTRIA since 1920-12-09) | King Albert I (ruler of BELGIUM since 1909-12-23) | Reichpresident Friedrich Ebert (ruler of GERMANY since 1919-02-11) | King Christian X (ruler of DENMARK since 1912-05-14) | King Alfonso XII (ruler of SPAIN since 1900-01-01) | President Alexandre Millerand (ruler of FRANCE since 1920-09-21) | King Victor Emmanuel III (ruler of ITALY since 1900-07-29) | Emperor Yoshihito (ruler of JAPAN since 1912-07-30) | Queen Wilhelmina (ruler of NETHERLANDS since 1900-01-01) | President Antonio Jose de Almeida (ruler of PORTUGAL since 1919-10-05) | President Hsu Shih-Chang (ruler of CHINA since 1918-10-10) | King Gustav V (ruler of SWEDEN since 1907-12-08) |