Man in the Iron Mask in the mask. It has even been suggested that he was one of the other famous contemporary prisoners being held at Pignerol at the same time as Dauger. Voltaire claimed that the prisoner was a son of Anne of Austria and Cardinal Mazarin, and therefore an illegitimate half-brother of King Louis XIV. However, the sincerity of this claim is uncertain. In his history essay "Le Masque de fer", French novelist Marcel Pagnol, supporting his theory in particular on the circumstances of King Louis XIV's birth, claims that the Man in the Iron mask was indeed a twin but born second,
Man in the Iron Mask Marquise de Fabrègues, dated 20 June 1678, which is filled with self-pity as Eustache complains about his treatment in prison, where he has been held for 10 years, and how he was deceived by their brother Louis and Clérac, their brother-in-law and the manager of Louis' estate. A year later, he wrote a letter to the king, outlining the same complaints and making a similar request for freedom. The best the king would do, however, was to send a letter to the head of Saint-Lazare telling him that "M. de Cavoye should have communication with no one at all, not