| 20 Jul | 1927 | King Michael I of Romania | (1921-2017) | (abdicated 1930) |
| 1 Sep | 1928 | King Zog I of Albania | (1895-1961) | (deposed 1939) |
| 11 Feb | 1929 | Prince Franz I of Liechtenstein | (1853-1938) |
| 8 Jun | 1930 | King Carol II of Romania | (1893-1953) | (abdicated 1940) |
| 17 Feb | 1934 | King Leopold III of Belgium | (1901-1983) | (abdicated 1951) |
| 9 Oct | 1934 | King Peter II of Yugoslavia | (1923-1970) | (deposed 1945) |
| 3 Nov | 1935 | King George II of Greece | (1890-1947) |
| 20 Jan | 1936 | King Edward VIII of Great Britain | (1894-1972) | (abdicated 1936) |
| 10 Dec | 1936 | King George VI of Great Britain | (1895-1952) |
| 25 Jul | 1938 | Prince Franz Joseph II of Liechtenstein | (1906-1989) |
| 6 Sep | 1940 | King Michael I of Romania | | (deposed 1947) |
| 28 Aug | 1943 | King Simeon II of Bulgaria | (1937- ) | (deposed 1946) |
| 9 May | 1946 | King Umberto II of Italy | (1904-1983) | (deposed 1946) |
| 1 Apr | 1947 | King Paul I of Greece | (1901-1964) |
| 20 Apr | 1947 | King Frederik IX of Denmark | (1899-1972) |
| 6 Sep | 1948 | Queen Juliana of the Netherlands | (1909-2004) | (abdicated 1980) |
| 9 May | 1949 | Prince Rainier III of Monaco | (1923-2005) |
| 29 Oct | 1950 | King Gustaf VI Adolf of Sweden | (1882-1973) |
| 16 Jul | 1951 | King Baudouin I of Belgium | (1930-1993) |
| 6 Feb | 1952 | Queen Elizabeth II of Great Britain | (1926-2022) |
| 21 Sep | 1957 | King Olav V of Norway | (1903-1991) |
| 5 Jan | 1964 | Grand Duke Jean of Luxembourg | (1921-2019) | (abdicated 2000) |
| 6 Mar | 1964 | King Constantine II of Greece | (1940-2023) | (deposed 1973) |
| 14 Jan | 1972 | Queen Margrethe II of Denmark | (1940- ) | (abdicated 2024) |
| 19 Sep | 1973 | King Carl XVI Gustaf of Sweden | (1946- ) |
| 22 Nov | 1975 | King Juan Carlos I of Spain | (1938- ) | (abdicated 2014) |
| 30 Apr | 1980 | Queen Beatrix of the Netherlands | (1938- ) | (abdicated 2013) |
| 13 Nov | 1989 | Prince Hans Adam II of Liechtenstein | (1945- ) |
| 17 Jan | 1991 | King Harald V of Norway | (1937- ) |
| 9 Aug | 1993 | King Albert II of Belgium | (1934- ) | (abdicated 2013) |
| 7 Oct | 2000 | Grand Duke Henri of Luxembourg | (1955- ) |
| 6 Apr | 2005 | Prince Albert II of Monaco | (1958- ) |
| 30 Apr | 2013 | King Willem-Alexander of the Netherlands | (1967- ) |
| 21 Jul | 2013 | King Philippe of Belgium | (1960- ) |
| 19 Jun | 2014 | King Felipe VI of Spain | (1968- ) |
| 8 Sept | 2022 | King Charles III of Great Britain | (1948- ) |
| 14 Jan | 2024 | King Frederik X of Denmark | (1968- ) |