Du Junca kept two private registers: in the first he recorded those who entered the Bastille; in the second he recorded those who left, either by being freed or by dying. His entry for the mysterious prisoner, who had long ago lost his name and his identity, reads:
'Monday 19 November 1703, the prisoner, unknown, always masked with a mask of black velvet, whom Monsieur de St Mars governor had brought with him upon coming from the isles St Marguerite whom he had guarded for a long time, the which feeling a little unwell yesterday upon leaving mass, he died today at ten o’clock in the evening without having had a serious illness; it could not have been more slight. M. Giraut our almoner confessed him yesterday is surprised by his death. He did not receive the sacraments, and our almoner exhorted him a moment before he died, and this unknown prisoner kept here for so long, was buried on Tuesday at four o’clock in the afternoon, 20 November in the cemetery of St Paul our parish. On the register of burial he was given a name also unknown; that Monsieur de Rosarges major and Arriel [sic] surgeon who have signed the register.'
In the margin, Du Junca added: ‘I have since learned that they named him on the register M de Marchiel; that they paid 40 livres for the funeral.'
The prisoner was indeed buried on 20 November 1703 in the churchyard of Saint-Paul-des-Champs. This was, as Du Junca noted, the parish church which served the Bastille, Situated on what is today the corner of the rue Saint-Paul and rue Neuve Saint-Pierre, it was closed in 1790 and its register was destroyed in a fire set by the Communards in May 1871. Happily, the register's contents had already been copied by historians. The entry for the Iron Mask's burial read:
'On the 19th [November], Marchioly, aged 45 years or thereabouts, died at the Bastille, whose body was buried in the churchyard of St. Paul, his parish, the 20th of the present month, in the presence of M. Reglhe [sic], surgeon major of the Bastille, who signed.’
It was then signed by Rosarges and Reilhe.
'On the 19th [November], Marchioly, aged 45 years or thereabouts, died at the Bastille, whose body was buried in the churchyard of St. Paul, his parish, the 20th of the present month, in the presence of M. Reglhe [sic], surgeon major of the Bastille, who signed.’
It was then signed by Rosarges and Reilhe.