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) insisted on Louis Hayward, who had just made "The Duke of West Point" for him. Louis Hayward played D'Artagnan in a gender-switched 1952 remake entitled "Lady in the Iron Mask" with Patricia Medina in the titular role and Alan Hale, Jr. as Porthos, the part his father Alan Hale, Sr. had portrayed in the 1939 version. In what may have been another instance of stunt casting, Hale Jr. played Porthos in the 1979 film "The Fifth Musketeer" (which is also based on "The Man in the Iron Mask"). Frank S. Nugent called the film "a moderately entertaining costume piece" with