Leonardo DiCaprio in a scene from the film' The Man In The Iron Mask'( Image: GETTY) It's an enigma that has prevailed for over three centuries: who was the Man In The Iron Mask?... Their process extracts proteins from items touched or worn by people long dead. Their first experiment was on the original manuscript of The Master And Margarita by the Soviet writer Mikhail Bulgakov.... le Sainte-Marguerite near Cannes, in the south of France, in order to find clues. This is one of the places wher