| Country | Sovereign | Born | Acceded | ||
| Austria-Hungary | Emperor Franz Joseph I | 18 August | 1830 | 2 December | 1848 |
| Liechtenstein | Prince Johann II | 5 October | 1840 | 12 November | 1858 |
| Montenegro | Prince Nikola | 7 October | 1841 | 13 August | 1860 |
| Greece | King George I | 24 December | 1845 | 27 June | 1863 |
| Belgium | King Leopold II | 9 April | 1835 | 17 December | 1865 |
| Rumania | King Carol I | 20 April | 1839 | 20 April | 1866 |
| Sweden | King Oscar II | 21 January | 1829 | 18 September | 1872 |
| Ottoman Empire | Sultan Abdul Hamid II | 22 September | 1842 | 31 August | 1876 |
| Spain | King Alfonso XIII | 17 May | 1886 | 17 May | 1886 |
| Bulgaria | Prince Ferdinand I | 26 February | 1861 | 7 July | 1887 |
| German Empire | Emperor Wilhelm II | 27 January | 1859 | 15 June | 1888 |
| Monaco | Prince Albert | 13 November | 1848 | 10 September | 1889 |
| Portugal | King Carlos I | 28 September | 1863 | 19 October | 1889 |
| Netherlands | Queen Wilhelmina | 31 August | 1880 | 23 November | 1890 |
| Russia | Emperor Nicholas II | 18 May | 1868 | 1 November | 1894 |
| Italy | King Victor Emanuel III | 11 November | 1869 | 29 July | 1900 |
| Great Britain & Ireland | King Edward VII | 9 November | 1841 | 22 January | 1901 |
| Servia | King Peter I | 29 June | 1844 | 15 June | 1903 |
| Luxemburg | Grand Duke Guillaume IV | 22 April | 1852 | 17 November | 1905 |
| Norway | King Haakon VII | 3 Aug | 1872 | 18 November | 1905 |
| Denmark | King Frederik VIII | 3 June | 1843 | 29 January | 1906 |
| France | President Armand Fallières | 6 November | 1841 | 18 February | 1906 |
Windsor Castle, 17 November 1907.
Standing: King Alfonso XIII of Spain, Emperor William II of Germany, Queen Alexandra of the United Kingdom, King Edward VII of the United Kingdom.
Seated: Queen Maud of Norway, Empress Augusta of Germany, Queen Amelia of Portugal, Queen Victoria Eugenie of Spain.
