(At the time my cello was made by Thomas Kennedy in London)
| Country | Sovereign | Born | Acceded | Consort (born) | Heir (born) |
 Kingdom of Württemberg |  King Wilhelm I | 27 Sep 1781 | 30 Oct 1816 |  Queen Pauline (1800) |  Crown Prince Karl (1822) |
 Russian Empire |  Emperor Nicholas I | 6 Jul 1796 | 1 Dec 1825 |  Empress Alexandra (1798) |  Tsarevich Alexander (1818) |
 Kingdom of the Two Sicilies |  King Ferdinando II | 12 Jan 1810 | 8 Nov 1830 |  Queen Maria Theresa (1816) | Crown Prince Francesco (1836) |
 Kingdom of Belgium |  King Leopold I | 16 Dec 1790 | 21 Jul 1831 |  Queen Louise (1812) |  Prince Leopold, Duke of Brabant (1835) |
 Kingdom of Greece |  King Otto I | 1 Jun 1815 | 27 May 1832 |  Queen Amalia (1818) | |
 Kingdom of Spain |  Queen Isabel II | 10 Oct 1830 | 29 Sep 1833 |  Francisco de Asís, Duke of Cádiz (1822) |  Infanta Luísa, Princess of Asturias (1832) |
 Kingdom of Portugal |  Queen Maria II | 4 Apr 1819 | 26 May 1834 (1826-28) |  King Ferdinand II (1816) |  Crown Prince Pedro (1837) |
 Kingdom of Saxony |  King Friedrich August II | 18 May 1797 | 6 Jun 1836 |  Queen Maria Anna (1805) |  Prince Johann (1801) |
 United Kingdom of Great Britain & Ireland |  Queen Victoria | 24 May 1819 | 20 Jun 1837 |  Prince Albert (1819) |  Prince Albert Edward, Prince of Wales (1841) |
 Kingdom of Hanover |  King Ernst August I | 5 Jun 1771 | 20 Jun 1837 |  Crown Prince Georg (1819) | |
 Kingdom of Prussia |  King Friedrich Wilhelm IV | 15 Oct 1795 | 7 Jun 1840 |  Queen Elisabeth (1801) |  Prince Wilhelm (1797) |
 Kingdom of Sweden & Norway |  King Oscar I | 4 Jul 1799 | 8 Mar 1844 |  Queen Josephine (1807) |  Crown Prince Carl (1826) |
 Papal States |  Pope Pius IX | 13 May 1792 | 16 Jun 1846 | ||
 Kingdom of Denmark |  King Frederik VII | 6 Oct 1808 | 20 Jan 1848 | ||
 Kingdom of Bavaria |  King Maximilian II | 28 Nov 1811 | 20 Mar 1848 |  Queen Marie (1825) | Crown Prince Ludwig (1845) |
 Austrian Empire |  Emperor Franz Joseph I | 18 Aug 1830 | 2 Dec 1848 |  Archduke Maximilian (1832) | |
 French Republic |  President Louis Napoleon Bonaparte | 20 Apr 1808 | 20 Dec 1848 | ||
 Kingdom of the Netherlands |
 King Willem III | 19 Feb 1817 | 17 Mar 1849 |  Queen Sophie (1818) | Willem, Prince of Orange (1840) |
 Kingdom of Sardinia |  King Victor Emanuel II | 14 Mar 1820 | 23 Mar 1849 |  Queen Adelaide (1822) |  Crown Prince Umberto (1844) |
