Era
1972-
Since 1972
119
1945-
28
1947-1972
27
20th century
21
Since 1900
16
Since 1945
15
Since 1947
13
1941-
10
21st century
9
1947-
6
1973-
6
1922-
5
1929-
4
1950-
4
1968-
4
1989-
4
Margrethe II, 1972-
4
1922-2016
3
1964-
3
2000-2099
3
1900-
2
1912-1947
2
1943-
2
1948-
2
1952-
2
1953-
2
1955-
2
1977-
2
20e siècle
2
Since 1912
2
Since 1950
2
(1925- ...)
1
1772-1811
1
1889-1945
1
1913-2015
1
1918-1981
1
1920-1989
1
1922-1995
1
1929-2004
1
1932-
1
1934-2016
1
1935-2023
1
1938-
1
1939-
1
1939-2018
1
1940-
1
1945-1990
1
1947 - 1972
1
1947-1972 (Frédéric IX)
1
more ...