Eustache Dauger – The Name of The Prisoner
In his letter to Saint-Mars announcing the imminent arrival of the prisoner who would become the "man in the iron mask", Louvois gave his name as "Eustache Dauger" and historians have found evidence that a Eustache Dauger was living at the time and was involved in shady and embarrassing events involving people in high places. His full name was Eustache Dauger de Cavoye.
Records indicate that he was born on 30 August 1637, the son of François Dauger, a captain in Cardinal Richelieu's guards. François was married to Marie de Sérignan and they had eleven children, nine of whom survived into adulthood. When François and his two eldest sons were killed in battle, Eustache became the nominal head of the family. Like them he joined the army where he came under the command of Armand de Gramont, comte de Guiche, a brave soldier, notorious playboy and bisexual.
Read more about this topic: Man In The Iron Mask
... However, evidence has emerged that Dauger de Cavoye actually died in the Prison Saint-Lazare, an asylum run by monks which many families used in order to imprison ... Documents have survived indicating that Dauger de Cavoye was held at Saint-Lazare in Paris at about the same time that Dauger, the man in the mask, was taken into custody in Pignerol, hundreds of miles ... These include a letter sent to Dauger de Cavoye's sister, the Marquise de Fabrègues, dated 20 June 1678, which is filled with self-pity as Eustache complains about his ...