Man in the Iron Mask dynasty, as well as in the House of Valois, Bourbon and lastly the House of Orléans. Alexandre Dumas explored a similar theory in his book "The Vicomte de Bragelonne", where the prisoner was instead an identical twin of Louis XIV. This book has served as the basis – even if loosely adapted – for many film versions of the story. According to Marcel Pagnol’s theory, this twin was then born in 1638, grew up on Jersey Island, being named James de la Cloche. Later he would have conspired against King Louis XIV besides Roux de Marcilly, and would have been
Man in the Iron Mask the enquiry the investigators were told about a supplier of poisons, a surgeon named "Auger", and Duvivier became convinced that Dauger de Cavoye, disinherited and short of money, had become Auger, the supplier of poisons, and subsequently Dauger, the man in the mask. In a letter sent by Louvois to Saint-Mars shortly after Fouquet's death while in prison (with Dauger acting as his valet), the minister adds a note in his own handwriting, asking how Dauger performed certain acts that Saint-Mars had mentioned in a previous correspondence (now lost) and "how he got the drugs necessary to do so". Duvivier