| Country | Sovereign | Born | Acceded | Consort (born) | Heir (born) |
 Kingdom of Norway |
 King Haakon VII |
3 Aug 1872 | 18 Nov 1905 (exiled 1940-45) |
 Crown Prince Olav (1903) |
|
 Kingdom of Sweden |
 King Gustaf V |
16 Jun 1858 | 8 Dec 1907 |  Crown Prince Gustaf Adolf (1882) |
|
 Grand Duchy of Luxembourg |
 Grand Duchess Charlotte |
23 Jan 1896 | 14 Jan 1919 (exiled 1940-45) |
 Prince Felix (1893) |
 Her. Grand Duke Jean (1921) |
 Kingdom of Belgium |
 King Leopold III |
3 Nov 1901 | 23 Feb 1934 |  Prince Baudouin, Duke of Brabant (1930) |
|
 United Kingdom of Great Britain and Northern Ireland |
 King George VI |
14 Dec 1895 | 11 Dec 1936 |  Queen Elizabeth (1900) |
 Princess Elizabeth (1926) |
 Principality of Liechtenstein |
 Prince Franz Joseph II |
16 Aug 1906 | 25 Jul 1938 |  Princess Georgina (1921) |
Her. Prince Hans Adam (1945) |
 Kingdom of Greece |
 King Paul I |
14 Dec 1901 | 1 Apr 1947 |  Queen Frederica (1917) |
Crown Prince Constantine (1940) |
 Kingdom of Denmark |
 King Frederik IX |
11 Mar 1899 | 20 Apr 1947 |  Queen Ingrid (1910) |
 Prince Knud (1900) |
 Kingdom of the Netherlands |
 Queen Juliana |
30 Apr 1909 | 4 Sept 1948 |  Prince Bernhard (1911) |
Princess Beatrix (1938) |
 Principality of Monaco |
 Prince Rainier III |
31 May 1923 | 9 May 1949 | Princess Antoinette (1920) |