In the late 1600s a man was doubly-imprisoned: his body in an iron cell and his face in an iron mask. Who the “man in the iron mask” was, why he was imprisoned, and how he was treated during imprisonment, remains a mystery that has captivated historians for centuries. Before Dumas penned the final volume of his D’Artagnan Romances, “The Man in the Iron Mask,” he wrote that “everything connected with the masked prisoner arouses the most vivid curiosity.” This essay is a comprehensive summary of theories regarding the masked prisoner’s identity and history from the 1770s to Dumas’ time . - Summary by jvanstan