Era
1991-2000
5
1564-1616
3
20th century
3
1900-2002
2
1921-2021
2
1926-2022
2
1930-2002
2
1961-1970
2
2001-2010
2
21st century
2
Elizabeth II, 1952-2022
2
1821-1880
1
1868-1918
1
1869-1948
1
1872-1918
1
1874-1965
1
1886-1968
1
1894-1917
1
1895-1952
1
1895-1966
1
1899-1977
1
1904-1976
1
1906-1947
1
1906-1989
1
1912-1994
1
1916-2009
1
1919-1947
1
1922-1990
1
1924-1984
1
1928-1965
1
1931-1965
1
1933-1991
1
1940-1980
1
1943-2001
1
1945-
1
1945-1989
1
1947-
1
1948-
1
19th century
1
2001-2009
1
Bombardment, 1944-1945
1
Civil War, 1861-1865
1
Nicholas II, 1894-1917
1
To 1057
1
active 11th century
1