Era
1815-1870
49
1740-1815
28
1806-1815
27
Frederick II, 1740-1786
26
1789-1900
23
Frederick William III, 1797-1840
12
Frederick William IV, 1840-1861
12
Revolution, 1848-1849
12
1815-1866
11
Frederick William I, 1713-1740
11
1423-1815
10
1797-1840
10
1848-1870
9
1789-1815
7
1815-1898
7
1648-1789
6
1848-1866
6
Geschichte
6
1806-1848
5
1848-1871
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
1740-1786
4
1740-1806
4
1786-1806
4
1840-1861
4
1848-1849
4
1870-1947
4
19th century
4
Maria Theresa, 1740-1780
4
1640-1740
3
1709-1758
3
1712-1786
3
1795-1861
3
1849-1866
3
18th century
3
Catherine II, 1762-1796
3
Geschichte 1785-1866
3
Geschichte 1795-1815
3
Joseph II, 1780-1790
3
1657-1713
2
1668-1713
2
1742-1819
2
1760-1789
2
1769-1821
2
1870
2
1871-1918
2
Alexander I, 1801-1825
2
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