King Leopold II (ruler of BELGIUM since 1900-01-01) | Prince Ferdinand I (ruler of BULGARIA since 1900-01-01) | President Marc-Emile Ruchet (ruler of SWITZERLAND since 1905-01-01) | Emperor William II (ruler of GERMANY since 1900-01-01) | King Christian IX (ruler of DENMARK since 1900-01-01) | King Alfonso XII (ruler of SPAIN since 1900-01-01) | President Emile Loubet (ruler of FRANCE since 1900-01-01) | King George I (ruler of GREECE since 1900-01-01) | Mozaffar ad-Din Shah Kajar (ruler of PERSIA since 1900-01-01) | King Victor Emmanuel III (ruler of ITALY since 1900-07-29) | Emperor Mutsuhito (ruler of JAPAN since 1900-01-01) | Grand Duke Adolphe (ruler of LUXEMBURG since 1900-01-01) |
Prince Nicholas I. Petrovich-Njegosh (ruler of MONTENEGRO since 1900-01-01) | President Porfirio Diaz (ruler of MEXICO since 1900-01-01) | Queen Wilhelmina (ruler of NETHERLANDS since 1900-01-01) | PM Christian Michelsen (ruler of NORWAY since 1905-06-07) | King Carlos I the Diplomat (ruler of PORTUGAL since 1900-01-01) | King Carol I (ruler of RUMANIA since 1900-01-01) | King Peter I. Karageorgevich (ruler of SERVIA since 1903-06-15) | Tsar Nicholas II (ruler of RUSSIA since 1900-01-01) | King Rama V. Chulalongkorn the Great (ruler of SIAM since 1900-01-01) | King Edward VII (ruler of UNITED KINGDOM since 1901-01-22) | President Theodore Roosevelt (ruler of AMERICA since 1901-09-14) | Emperor Kwang-Hsu Tsai-Tien (ruler of CHINA since 1900-01-01) |