Greek expatriate royalty

Prince Philip, Duke of Edinburgh, was the husband of Queen Elizabeth II and served as consort of the British monarch from her accession on 6 February 1952 until his death in 2021, making him the longest-serving royal consort in British history.

queen consort of Spain from 1975 to 2014

Duchess of Kent from 1934 to 1968

Romanian Royal (1896–1982)

daughter of George I of Greece and Olga Constantinovna of Russia; wife of Grand Duke Paul Alexandrovich of Russia

Greek princess, Queen consort of Croatia, Duchess of Aosta (1904–1974)