2. We know, from du Junca's register, that the masked man was shut up at Pignerol under the charge of Saint-Mars. In 1681, Saint-Mars gave up the governorship of Pignerol for that of Exiles. We can determine with absolute precision the number of prisoners Saint-Mars had then in his keeping. It was exactly five. A dispatch from Louvois, dated June 9, is very clear. In the first paragraph, he orders "the two prisoners in the lower tower" to be removed; in the second, he adds: "The rest of the prisoners in your charge." Here there is a clear indication of the "rest": what follows settles the number: "The Sieur du Chamoy has orders to pay two crowns a day for the board of these _three_ prisoners." This account, as clear as arithmetic can make it, is further confirmed by the letter addressed by Saint-Mars to the Abbé d'Estrades on June 25, 1681, when he was setting out for Exiles: "I received yesterday the warrant appointing me governor of Exiles: I am to keep charge of two jailbirds I have here, who have no other name than 'the gentlemen of the lower tower'; Mattioli will remain here with two other prisoners." The prisoners, then, were five in number, and the masked man is to be found, of necessity, among them. Now we know who these five were: (1) a certain La Rivière, who died at the end of December, 1686; (2) a Jacobin, out of his mind, who died at the end of 1693; (3) a certain Dubreuil, who died at the Isles of Sainte-Marguerite about 1697. There remain Dauger and Mattioli. The Man in the Mask is, without possible dispute, the one or the other. We have explained above the reasons which lead us to discard Dauger. The mysterious prisoner, then, was Mattioli. The proof is mathematically exact. [Illustration: Burial certificate of the masked prisoner (November 20, 1703), reproduced from the facsimile in the sixth edition of _The Man in the Iron Mask_, by Marius Topin, 1883. The original, in the city archives of Paris, was destroyed in the conflagration of 1871. ] 3. Opposite this page will be found a facsimile reproduction of the death certificate of the masked prisoner as inscribed on the registers of the church of St. Paul. It is the very name of the Duke of Mantua's former secretary that is traced there: "Marchioly." It must be remembered that "Marchioly" would be pronounced in Italian "Markioly," and that Saint-Mars, governor of the Bastille, who furnished the information on which the certificate was drawn up, almost always wrote in his correspondence--a characteristic detail--not "Mattioli," but "Martioly": that is the very name on the register, less distorted than the name of the major of the Bastille, who was called "Rosarges," and not "Rosage," as given on the register; and the name of the surgeon, who was called "Reilhe," and not "Reglhe."