Cyfnod
20th century
26
18th century
7
17th century
6
1883-1955
6
19th century
6
16th century
5
1515-1582
4
Middle Ages, 600-1500
4
Classical period, 1500-1700
3
Republic, 1931-1939
3
To 1500
3
1491-1556
2
1516-1700
2
1735-1816
2
21st century
2
Charles III, 1759-1788
2
-1140
1
-1540
1
-1688
1
1126-1198
1
1135-1204
1
1221-1284
1
1376?-1460?
1
1428?-1507
1
1499?-1569
1
1527-1591
1
1529?-1588
1
1534-1623
1
1539-1616
1
1551-
1
1602-1665
1
1734-1820
1
1747-1824
1
1781-1832
1
1809-1882
1
1839-1915
1
1844-1900
1
1851-1921
1
1852-1934
1
1868-1943
1
1872-1956
1
1874-1936
1
1879-1949
1
1881-1973
1
1888-1963
1
1892-1940
1
1900-1969
1
1914-2005
1
1927-
1
1931-1939
1
rhagor ...