Era
2009-
89
20th century
64
2001-2009
57
1981-2001
52
21st century
45
1981-1993
24
2000-2099
23
2008-2009
22
1971-1981
19
1900-1999
17
1993-2001
15
2000-
15
16th century
14
1918-1945
13
1926-
12
2001-
11
Mary I, 1553-1558
8
1883-1946
7
1929
7
1945-
7
1989-
7
19th century
7
17th century
6
Since 1989
6
1961-1971
5
Since 2000
5
Since 2009
5
18th century
4
1900-2099
4
1976-2000
4
1979-1997
4
1981-
4
Edward VI, 1547-1553
4
James I, 1603-1625
4
To 1775
4
1868-
3
1908-
3
1918-1933
3
1933-1945
3
1991-
3
1994-
3
Charles I, 1625-1649
3
Revolution, 1775-1783
3
Since 1868
3
Since 2008
3
1328-1589
2
1590-1649
2
1757-1804
2
1761-1849
2
1783-1865
2
more ...