Athos, by his full name Armand de Sillègue d'Athos d'Autevielle, was a king's musketeer, born in 1615 in Béarn and died on December 21, 1645. He inspired Alexandre Dumas with the fictional character of "Athos", or “Comte de la Fère” in the novel “The Three Musketeers. »
Athos takes its name from the small town of Athos-Aspis on the Gave d'Oloron, near Sauveterre-de-Béarn and near Autevielle. Son of Adrien de Sillègue, lord of Athos and Auteville, he could not hope, as the youngest of the family, to receive the lordships of Athos and Autevielle which would go to his eldest. He therefore had the choice of entering the army or the orders. He was a second cousin of Monsieur de Tréville, whose protection allowed him to enter the regiment of Musketeers in 1640, at the same time as Porthos. We only know of him that he was from Béarn, and that he disappeared young, probably killed during a duel as indicated by the death register of the Saint-Sulpice church in Paris on December 21 1645 “Convoy, service and burial of the deceased Armand, Athos d'Autebielle, musketeer of the King's Guard, gentleman of Béarn, taken near the Pré au Clercs hall. »
Le Pré au Clercs being a place known to be the meeting place of duelists, it is likely that this is how he died