ˌMan in the ˌIron ˈMask, the BrE AmE
a man who was kept as a prisoner in the Bastille, a prison in Paris, and died there in 1703. His face was always kept hidden by a ↑ mask , and some people believe that he was the brother of the French king Louis XIV, but this is probably untrue. Several films have been made about this story, including one in 1998 with the actors Gérard Depardieu and Leonardo di Caprio.