Frederick IX

Frederick IX (1899-1972), King of Denmark (1947-1972), son and successor of King Christian X, born near Copenhagen. Frederick was educated at the Danish Naval Academy and the University of Copenhagen. He broke the Danish royal tradition by choosing a naval instead of an army career. During the German occupation of Denmark in World War II, Frederick was virtually interned in the palace. Because he had no male heir, Denmark's law of succession was changed during his reign, and he was succeeded by his eldest daughter, Margaret II.