| Country | Sovereign | Born | Acceded | ||
| Austro-Hungarian Empire | Emperor Franz Joseph I | 18 August | 1830 | 2 December | 1848 |
| Liechtenstein | Prince Johann II | 5 Oct | 1840 | 12 Nov | 1858 |
| Montenegro | Prince Nikola I | 7 October | 1841 | 13 August | 1860 |
| Greece | King George I | 24 December | 1845 | 27 June | 1863 |
| Denmark | King Christian IX | 8 April | 1818 | 16 November | 1863 |
| Korean Empire | Emperor Gwangmu | 8 Sep | 1852 | 13 Dec | 1863 |
| Belgium | King Leopold II | 9 April | 1835 | 217 December | 1865 |
| Romania | King Carol I | 20 April | 1839 | 20 April | 1866 |
| Japanese Empire | Emperor Mutsuhito | 3 November | 1852 | 3 February | 1867 |
| Siam | King Chulalongkorn | 20 September | 1853 | 1 October | 1868 |
| Sweden & Norway | King Oscar II | 21 January | 1829 | 18 September | 1872 |
| Chinese Empire | Guangxu Emperor | 14 Aug | 1871 | 25 Feb | 1875 |
| Nepal | King Prithvi | 18 August | 1875 | 17 May | 1881 |
| Ottoman Empire | Sultan Abdul Hamid II | 22 September | 1842 | 31 August | 1876 |
| Afghanistan | Emir Abdur Rahman Khan | 31 May | 1880 | ||
| Spain | King Alfonso XIII | 17 May | 1886 | 17 May | 1886 |
| Bulgaria | Prince Ferdinand I | 26 February | 1861 | 7 July | 1887 |
| Muscat & Oman | Sultan Feisal bin Turki | 1864 | 4 June | 1888 | |
| German Empire | Emperor Wilhelm II | 27 January | 1859 | 15 June | 1888 |
| Ethiopia (Abyssinia) | Emperor Menelik II | 17 August | 1844 | 9 March | 1889 |
| Monaco | Prince Albert I | 13 Nov | 1848 | 10 Sep | 1889 |
| Portugal | King Carlos I | 28 Sep | 1863 | 19 Oct | 1889 |
| Netherlands | Queen Wilhelmina | 31 Aug | 1880 | 23 Nov | 1890 |
| Luxembourg | Grand Duke Adolf | 24 Jul | 1817 | 23 Nov | 1890 |
| Egypt | Khedive Abbas II | 14 Jul | 1874 | 8 Jan | 1892 |
| Morocco | Sultan Mulai Abd al-Aziz IV | 24 Feb | 1878 | 7 Jun | 1894 |
| Russian Empire | Emperor Nicholas II | 18 May | 1868 | 1 November | 1894 |
| Persia | Mozaffar ad-Din Shah Qajar | 23 Mar | 1853 | 1 May | 1896 |
| Italy | King Vittorio Emanuele III | 11 November | 1869 | 29 July | 1900 |
| United Kingdom & British Empire Canada Australia | King Edward VII | 9 November | 1841 | 22 January | 1901 |
| Serbia | King Peter I | 29 June | 1844 | 15 June | 1903 |
King Leopold II of Belgium, King Alfonso XIII of Spain, President Emile Loubet of France, King Edward VII of the United Kingdom, King Carlos I of Portugal, King Christian IX of Denmark.
Emperor Franz Joseph I of Austria-Hungary, King Oscar II of Sweden & Norway, Emperor Nicholas II of Russia, King Victor Emanuel III of Italy, Emperor Wilhelm II of Germany.
Sultan Abdul Hamid II of the Ottoman Empire, King George I of Greece, King Peter I of Serbia, King Carol I of Romania, Prince Ferdinand I of Bulgaria, Prince Nicholas I of Montenegro.
The Government Building at the Louisiana Purchase Exposition
Festival Hall
