Margrethe II (1940) is the queen regnant of the Kingdom of Denmark. In 1972 she became the first female monarch of Denmark since Margaret I, ruler of the Scandinavian countries in 1388-1412 during the Kalmar Union.
On 10 June 1967, Princess Margrethe of Denmark married a French diplomat, Count Henri de Laborde de Monpezat, at the Naval Church of Copenhagen. Laborde de Monpezat received the style and title of "His Royal Highness Prince Henrik of Denmark" because of his new position as the spouse of the Heiress Presumptive to the Danish throne. (source)
Thank you Joona-Oskar and Granny!