Era
1868-1918
Nicholas II, 1894-1917
119
Revolution, 1917-1921
62
1894-1917
53
20th century
26
1872-1918
23
1894-1917 (Nicolas II)
20
1894-1921
20
1900-1999
18
1894 - 1917
17
1894-1999
12
1917-1921
12
1904-1918
11
1917-1921 (Révolution)
11
Alexander III, 1881-1894
9
1894 - 1921
8
1900 - 1999
7
1901-1918
7
1801-1917
6
1895-1918
6
1869-1916
5
1897-1918
5
1859-1929
4
1881-1894
4
1881-1894 (Alexandre III)
4
1897 or 1898-
4
1917 - 1921
4
1865-1936
3
1871-1899
3
1881-1917
3
February Revolution, 1917
3
George V, 1910-1936
3
1801 - 1917
2
1859-
2
1859-1941
2
1874-1937
2
1875-1932
2
1876-1963
2
1886
2
1886-
2
1887-1972
2
1893-1930
2
1894 - 1918
2
1894-1918
2
1899-1918
2
1904?-1988
2
1917-1921, Revolution
2
1951-
2
19th century
2
William II, 1888-1918
2
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