Man in the Iron Mask support of the National Library of France collections of ancient textiles, the accuracy of these notary documents discovered in 2015 has allowed the creation of the first virtual reconstruction of the prison of the man in the iron mask. The Man in the Iron Mask has also appeared in many works of fiction, most prominently in the late 1840s by Alexandre Dumas. A section of his novel "", the final installment of his D'Artagnan saga, features the Man in the Iron Mask. Here the prisoner is forced to wear an iron mask and is portrayed as Louis XIV's identical twin.
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