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 suggested that Dauger may have poisoned Fouquet as part of a complex power struggle between Louvois and his rival Colbert. However, evidence has emerged that Dauger de Cavoye actually died in the Prison Saint-Lazare, an asylum run by monks which many families used in order to imprison their "black sheep". Documents have survived indicating that Dauger de Cavoye was held at Saint-Lazare in Paris at about the same time that Dauger, the man in the mask, was taken into custody in Pignerol, hundreds of miles away in the south. These include a letter sent to Dauger de Cavoye's sister, the