Era
20th century
156
17th century
64
Stuarts, 1603-1714
57
1945-
54
18th century
51
19th century
51
1945-1989
33
William and Mary, 1689-1702
32
James I, 1603-1625
30
1933-1945
27
Charles I, 1625-1649
23
16th century
22
1989-
21
Revolution, 1917-1921
21
Revolution, 1789-1799
17
1948-
16
1889-1945
15
1985-1991
14
Charles II, 1660-1685
14
1945-1990
13
Civil War, 1936-1939
12
1918-1933
11
Anne, 1702-1714
11
1789-1900
10
1917-1936
10
1990-
10
1991-
10
Elizabeth, 1558-1603
10
To 1500
10
1671-1727
9
1918-1945
9
Commonwealth and Protectorate, 1649-1660
9
1627-1717
8
1871-1918
8
1874-1965
8
1878-1953
8
1936-1945
8
1949-
8
1949-1976
8
1960-
8
476-1492
8
Cultural Revolution, 1966-1976
8
1769-1821
7
1837-1901
7
1912-1949
7
1917-1948
7
1931-1939
7
1945-1953
7
1945-1955
7
1945-1991
7
more ...