Directory (ruler of GERMAN-AUSTRIA since 1918-11-12) | King Albert I (ruler of BELGIUM since 1909-12-23) | President Richard Mueller (ruler of GERMANY since 1918-11-11) | King Christian X (ruler of DENMARK since 1912-05-14) | King Alfonso XII (ruler of SPAIN since 1900-01-01) | President Raymond Poincare (ruler of FRANCE since 1913-02-18) | 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 Sidonio Pais (ruler of PORTUGAL since 1917-12-12) | President Hsu Shih-Chang (ruler of CHINA since 1918-10-10) | King Gustav V (ruler of SWEDEN since 1907-12-08) |