Era
To 1775
32
1660-1688
31
1689-1702
10
1945-1989
9
17th century
7
1951-
7
20th century
6
Charles II, 1660-1685
6
1809-1865
5
1861-1865
5
1603-1649
4
1654-1693
4
1989-
4
1642-1649
3
1764
3
1900-1999
3
1946-
3
1989-1993
3
19th century
3
2009-2017
3
2017-
3
Civil War, 1861-1865
3
1610-1688
2
1642-1660
2
1660-1714
2
1688-1776
2
1707-1785
2
1725-1776
2
1727-1803
2
1759-1806
2
1760-1789
2
1763-1835
2
1765
2
1789-1797
2
1789-1809
2
1789-1820
2
1791
2
1799
2
1836-1919
2
1860
2
1864
2
1896-1985
2
1969-1974
2
2001-2009
2
21st century
2
Since 1945
2
Since 1951
2
William and Mary, 1689-1702
2
1582-1646
1
1584-1660
1
more ...