Prince Charles, Count of Flanders (died 1983)

Prince Charles, Count of Flanders was a member of the Belgian royal family who served as regent of Belgium from 1944 until 1950, while a judicial commission investigated his elder brother, King Leopold III of Belgium, as to whether he betrayed the Allies of World War II by an allegedly premature surrender in 1940 and collaboration with the Nazis during the occupation of Belgium. Charles' regency ended when Leopold was allowed to return to Belgium. Shortly after returning and resuming his monarchical duties, Leopold abdicated in favour of his son, Baudouin.