| Flag | Country | Sovereign | Born | Acceded | ||
|
Sweden |  King Carl XVI Gustaf |
30 April | 1946 | 15 September | 1973 |
|
Liechtenstein |  Prince Hans Adam II |
14 February | 1945 | 13 November | 1989 |
|
Norway |  King Harald V |
21 February | 1937 | 17 January | 1991 |
|
Luxembourg |  Grand Duke Henri |
16 April | 1955 | 7 October | 2000 |
|
Monaco |  Prince Albert II |
14 March | 1958 | 6 April | 2005 |
|
Netherlands |  King Willem-Alexander |
27 April | 1967 | 30 April | 2013 |
|
Belgium |  King Philippe |
15 April | 1960 | 21 July | 2013 |
|
Spain |  King Felipe VI |
30 January | 1968 | 19 June | 2014 |
|
United Kingdom |  King Charles III |
14 November | 1948 | 8 September | 2022 |
|
Denmark |  King Frederik X |
26 May | 1968 | 14 January | 2024 |