| Country | Sovereign | Born | Acceded | Consort | Heir |
 Austro-Hungarian Empire |  Emperor Franz Joseph I | 18 Aug 1830 | 2 Dec 1848 |  Archduke Franz Ferdinand (1863) | |
 Kingdom of Greece |  King George I | 24 Dec 1845 | 27 Jun 1863 |  Queen Olga (1851) | Crown Prince Constantine (1868) |
 Kingdom of Denmark |  King Christian IX | 8 Apr 1818 | 16 Nov 1863 | Crown Prince Frederik (1843) | |
 Kingdom of Belgium |  King Leopold II | 9 Apr 1835 | 17 Dec 1865 |  Queen Marie Henriette (1836) | Prince Philippe, Count of Flanders (1837) |
 Kingdom of Romania | King Carol I | 20 Apr 1839 | 20 Apr 1866 |  Queen Elisabeth (1843) | Crown Prince Ferdinand (1865) |
 Empire of Japan |  Emperor Meiji (Mutsuhito) | 3 Nov 1852 | 3 Feb 1867 |  Empress Shoken (Masako) (1849) | Crown Prince Yoshihito (1879) |
 Kingdom of Sweden & Norway |  King Oscar II | 21 Jan 1829 | 18 Sep 1872 |  Queen Sophia (1836) | Crown Prince Gustaf (1858) |
 Kingdom of Spain |  King Alfonso XIII | 17 May 1886 | 17 May 1886 |  Infanta Mercedes, Princess of Asturias (1880) | |
 German Empire |  Emperor Wilhelm II | 27 Jan 1859 | 15 Jun 1888 |  Empress Auguste Viktoria (1858) |  Crown Prince Wilhelm (1882) |
 Kingdom of Portugal |  King Carlos I | 28 Sep 1863 | 19 Oct 1889 |  Queen Amelia (1865) | Crown Prince Luis Filipe (1887) |
 Kingdom of the Netherlands |
 Queen Wilhelmina | 31 Aug 1880 | 23 Nov 1890 |  Prince Henry (1876) | Wilhelm Ernst, Her. Grand Duke of Saxe-Weimar-Eisenach (1876) |
 Russian Empire |  Emperor Nicholas II | 18 May 1868 | 1 Nov 1894 |  Empress Alexandra (1872) |  Grand Duke Michael (1878) |
 Kingdom of Italy |  King Victor Emanuel III | 11 Nov 1869 | 29 Jul 1900 |  Queen Elena (1873) |  Prince Emanuele Filiberto, Duke of Aosta (1869) |
 United Kingdom of Great Britain and Ireland |  King Edward VII | 9 Nov 1841 | 22 Jan 1901 |  Queen Alexandra (1844) |  Prince George, Duke of Cornwall & York (1865) |
