The report of the discovery of a shirt covered with writing, by a friar, which Abbe Papon mentions, may perhaps be traced to the following extracts from two letters written by Louvois to Saint-Mars: “Your letter has come to hand with the new handkerchief on which M. Fouquet has written” (18th Dec. 1665 ); “You can tell him that if he continues too employ his table-linen as note-paper he must not be surprised if you refuse to supply him with any more” ( 21st Nov. 1667).

Pere Papon asserts that a valet who served the masked prisoner died in his master’s room. Now the man who waited on Fouquet, and who like him was sentenced to lifelong imprisonment, died in February 1680 (see letter of Louvois to Saint-Mars, 12th March 1680). Echoes of incidents which took place at Pignerol might have reached the Iles Sainte-Marguerite when Saint-Mars transferred his “former prisoner” from one fortress to the other. The fine clothes and linen, the books, all those luxuries in fact that were lavished on the masked prisoner, were not withheld from Fouquet. The furniture of a second room at Pignerol cost over 1200 livres (see letters of Louvois, 12th Dec. 1665, and 22nd Feb, 1666).

It is also known that until the year 1680 Saint-Mars had only two important prisoners at Pignerol, Fouquet and Lauzun. However, his “former prisoner of Pignerol,” according to Du Junca’s diary, must have reached the latter fortress before the end of August 1681, when Saint-Mars went to Exilles as governor. So that it was in the interval between the 23rd March 1680, the alleged date of Fouquet’s death, and the 1st September 1681, that the Iron Mask appeared at Pignerol, and yet Saint-Mars took only two prisoners to Exilles. One of these was probably the Man in the Iron Mask; the other, who must have been Matthioli, died before the year 1687, for when Saint-Mars took over the governorship in the month of January of that year of the Iles Sainte-Marguerite he brought only ONE prisoner thither with him. “I have taken such good measures to guard my prisoner that I can answer to you for his safety” [‘Lettres de Saint-Mars a Louvois’, 20th January 1687).

In the correspondence of Louvois with Saint-Mars we find, it is true, mention of the death of Fouquet on March 23rd, 1680, but in his later correspondence Louvois never says “the late M. Fouquet,” but speaks of him, as usual, as “M. Fouquet” simply. Most historians have given as a fact that Fouquet was interred in the same vault as his father in the chapel of Saint-Francois de Sales in the convent church belonging to the Sisters of the Order of the Visitation-Sainte-Marie, founded in the beginning of the seventeenth century by Madame de Chantal. But proof to the contrary exists; for the subterranean portion of St. Francis’s chapel was closed in 1786, the last person interred there being Adelaide Felicite Brulard, with whom ended the house of Sillery. The convent was shut up in 1790, and the church given over to the Protestants in 1802; who continued to respect the tombs. In 1836 the Cathedral chapter of Bourges claimed the remains of one of their archbishops buried there in the time of the Sisters of Sainte-Marie. On this occasion all the coffins were examined and all the inscriptions carefully copied, but the name of Nicolas Fouquet is absent.

Voltaire says in his ‘Dictionnaire philosophique’, article “Ana,” “It is most remarkable that no one knows where the celebrated Fouquet was buried.”

But in spite of all these coincidences, this carefully constructed theory was wrecked on the same point on which the theory that the prisoner was either the Duke of Monmouth or the Comte de Vermandois came to grief, viz. a letter from Barbezieux, dated 13th August 1691, in which occur the words, “THE PRISONER WHOM YOU HAVE HAD IN CHARGE FOR TWENTY YEARS.” According to this testimony, which Jacob had successfully used against his predecessors, the prisoner referred to could not have been Fouquet, who completed his twenty-seventh year of captivity in 1691, if still alive.

We have now impartially set before our readers all the opinions which have been held in regard to the solution of this formidable enigma. For ourselves, we hold the belief that the Man in the Iron Mask stood on the steps of the throne. Although the mystery cannot be said to be definitely cleared up, one thing stands out firmly established among the mass of conjecture we have collected together, and that is, that wherever the prisoner appeared he was ordered to wear a mask on pain of death. His features, therefore, might during half a century have brought about his recognition from one end of France to the other; consequently, during the same space of time there existed in France a face resembling the prisoner’s known through all her provinces, even to her most secluded isle.

Whose face could this be, if not that of Louis XVI, twin-brother of the Man in the Iron Mask?

To nullify this simple and natural conclusion strong evidence will be required.

Our task has been limited to that of an examining judge at a trial, and we feel sure that our readers will not be sorry that we have left them to choose amid all the conflicting explanations of the puzzle. No consistent narrative that we might have concocted would, it seems to us, have been half as interesting to them as to allow them to follow the devious paths opened up by those who entered on the search for the heart of the mystery. Everything connected with the masked prisoner arouses the most vivid curiosity. And what end had we in view? Was it not to denounce a crime and to brand the perpetrator thereof? The facts as they stand are sufficient for our object, and speak more eloquently than if used to adorn a tale or to prove an ingenious theory.