(at the time of the premiere of Richard Wagner's Der Ring des Nibelungen)
| Country | Sovereign | Born | Acceded | Consort (born) | Heir (born) |
 Empire of Brazil |
 Emperor Dom Pedro II |
2 Dec 1825 | 7 Apr 1831 |  Empress Teresa Cristina (1822) |
 Isabel, Princess Imperial (1846) |
 United Kingdom of Great Britain & Ireland |
 Queen Victoria |
24 May 1819 | 20 Jun 1837 |  Prince Albert Edward, Prince of Wales (1841) |
|
 Austro-Hungarian Empire |
 Emperor Franz Joseph I |
18 Aug 1830 | 2 Dec 1848 |  Empress Elisabeth (1837) |
 Crown Prince Rudolf (1858) |
 Kingdom of the Netherlands |
 King Willem III |
19 Feb 1817 | 17 Mar 1849 |  Queen Sophie (1818) |
 Willem, Prince of Orange (1840) |
 Kingdom of Italy |
 King Victor Emanuel II |
14 Mar 1820 |
23 Mar 1849 (Sardinia) 17 Mar 1861 |
 Crown Prince Umberto (1844) |
|
 Russian Empire |
 Emperor Alexander II |
29 Apr 1818 | 2 Mar 1855 |  Empress Maria (1824) |
 Tsarevich Alexander (1845) |
 German Empire |
 Emperor Wilhelm I |
22 Mar 1797 |
2 Jan 1861 (Prussia) 18 Jan 1871 |
 Empress Auguste (1811) |
 Crown Prince Friedrich (1831) |
 Kingdom of Portugal |
 King Luís I |
31 Oct 1838 | 11 Nov 1861 |  Queen Maria Pia (1847) |
Crown Prince Carlos (1863) |
 |
 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 |  Queen Louise (1817) |
 Crown Prince Frederik (1843) |
 Kingdom of Bavaria |
 King Ludwig II |
25 Aug 1845 | 10 Mar 1864 |  Prince Otto (1848) |
|
 Kingdom of Württemberg |
 King Karl I |
6 Mar 1823 | 25 Jun 1864 |  Queen Olga (1822) |
 Prince Wilhelm (1848) |
 Kingdom of Belgium |
 King Leopold II |
9 Apr 1835 | 17 Dec 1865 |  Queen Marie Henriette (1836) |
 Prince Philippe, Count of Flanders (1837) |
 Kingdom of Sweden & Norway |
 King Oscar II |
21 Jan 1829 | 18 Sep 1872 |  Queen Sophia (1836) |
 Crown Prince Gustaf (1858) |
 Kingdom of Saxony |
 King Albert I |
23 Apr 1828 | 29 Oct 1873 |  Queen Carola (1833) |
 Prince Georg (1832) |
 Kingdom of Spain |
 King Alfonso XII |
28 Nov 1857 | 29 Dec 1874 |  Infanta Isabel, Princess of Asturias (1851) |
|
 Ottoman Empire |
 Sultan Murad V |
21 Sep 1840 | 31 May 1876 |
