(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 (Italy)		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 (Germany)	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)
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	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