Monarchs and Political Systems
in the 19th and 20th Centuries

Great Britain

Russian Empire / Soviet Union

British Monarchy (House of Hanover/Windsor) Russian Empire (House of Romanov)
   George III 1760 - 1820    Catherine II (the Great) 1762 - 1796
   George IV 1820 - 1830    Paul I 1796 - 1801
   William IV 1830 - 1837    Alexander I 1801 - 1825
   Victoria 1837 - 1901    Nicholas I 1825 - 1855
   Edward VII 1901 - 1910    Alexander II 1855 - 1881
   George V 1910 - 1936    Alexander III 1881 - 1894
   Edward VIII 1936    Nicholas II 1894 - 1917
   George VI 1936 - 1952 Soviet Russia  1917 - 1991
   Elizabeth II 1952 - Russian Republic 1991 -
 
Prussia / Germany France
Prussian Kingdom (House of Hohenzollern) French Monarchy (House of Bourbon)
   Frederick II (the Great) 1740 - 1786     Louis XVI 1774 - 1792
   Frederick William II 1786 - 1797 Republic 1792 - 1799
   Frederick William III 1797 - 1840 Consulate and Empire
   Frederick William IV 1840 - 1861    Napoleon I 1799 - 1814/5
   William I 1861 - 1871 Bourbon Monarchy
German Empire (also Prussia)    Louis XVIII 1814/5 - 1824
   William I 1871 - 1888    Charles X 1824 - 1830
   Frederick III 1888 Orléans Monarchy
   William II 1888 - 1918    Louis-Philippe 1830 - 1848
Weimar Republic 1918 - 1933 Second Republic 1848 - 1852
Third Reich 1933 - 1945 Second Empire
Allied occupation 1945 - 1949    Napoleon III 1852 - 1870
German Democratic  Third Republic 1870 - 1940
     Republic (East Germany) 1949 - 1990 Vichy / German occupation 1940 - 1944
Federal Republic of  Fourth Republic 1944 - 1958
     Germany 1949 - Fifth Republic 1958 -
 
Austria / Austria-Hungary Italy
Holy Roman Empire (House of Habsburg)  Italian Monarchy (House of Savoy)
    Francis II 1792 - 1806     Victor Emmanuel II 1861 - 1878
Austrian Empire     Umberto I 1878 - 1900
    Francis II 1804 - 1835     Victor Emmanuel III 1900 - 1946
    Ferdinand I 1835 - 1848     Umberto II 1946
    Francis Joseph 1848 - 1867 Republic 1946 -
Austro-Hungarian Empire
    Francis Joseph 1867 - 1916
    Charles I 1916 - 1918