Man in the Iron Mask one ever saw his face because it was hidden by a mask of black velvet cloth, the true identity of the prisoner remains a mystery; it has been extensively debated by historians, and various theories have been expounded in numerous books and films. Among the leading theories are those proposed by writer and philosopher Voltaire: he claimed in the second edition of his "Questions sur l'Encyclopédie" (1771) that the prisoner wore a mask made of iron rather than of cloth, and that he was the older, illegitimate brother of Louis XIV. What little is known about the historical Man in
The Man in the Iron Mask (1939 film) that day (but not where or when), he makes Philippe impersonate him in exchange for his friends' lives. Philippe not only survives the ambush, he shows mercy to his would-be killers and is cheered by the people. Princess Maria Theresa (Joan Bennett), whom Louis is to wed to seal an alliance with Spain, finds this new Louis much more attractive than the real one. However, when she discovers that Louis is having an affair with Mademoiselle de la Valliere (Marion Martin), she returns to Spain. When the truth is discovered, Louis has Philippe imprisoned with an iron mask placed on