Era
Frederick II, 1740-1786
26
1740-1815
25
1806-1815
25
1789-1900
15
1815-1870
15
Frederick William III, 1797-1840
12
Revolution, 1848-1849
12
Frederick William I, 1713-1740
11
1423-1815
10
Frederick William IV, 1840-1861
10
1848-1870
6
1789-1815
5
1815-1866
5
Consulate and First Empire, 1799-1815
5
Frederick I, 1688-1713
5
William I, 1871-1888
5
1640-1688 (Frederick William, the Great Elector)
4
1740-1806
4
Geschichte
4
Maria Theresa, 1740-1780
4
1797-1840
3
1815-1898
3
1848-1849
3
1849-1866
3
19th century
3
Catherine II, 1762-1796
3
Geschichte 1795-1815
3
Joseph II, 1780-1790
3
1648-1789
2
1709-1758
2
1712-1786
2
1795-1861
2
1848-1871
2
Alexander I, 1801-1825
2
Frederick William II, 1786-1797
2
Geschichte 1713-1740
2
Geschichte 1740-1748
2
Geschichte 1740-1772
2
Geschichte 1795-1801
2
Louis XIV, 1643-1715
2
Reign of Terror, 1793-1794
2
Second Empire, 1852-1870
2
1632-1694
1
1640-1740
1
1657-1713
1
1740-1789
1
1742-1819
1
1744-1797
1
1750-1822
1
1759-1830
1
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