Man in the Iron Mask in the mask. It has even been suggested that he was one of the other famous contemporary prisoners being held at Pignerol at the same time as Dauger. Voltaire claimed that the prisoner was a son of Anne of Austria and Cardinal Mazarin, and therefore an illegitimate half-brother of King Louis XIV. However, the sincerity of this claim is uncertain. In his history essay "Le Masque de fer", French novelist Marcel Pagnol, supporting his theory in particular on the circumstances of King Louis XIV's birth, claims that the Man in the Iron mask was indeed a twin but born second,
Man in the Iron Mask 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 an Eustache Dauger was living in France at the time and was involved in scandalous and embarrassing events involving people in high places known as l'Affaire des Poisons. 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 11 children, nine