Armand d'Athos

Armand, Seigneur de Sillègue, d'Athos, et d'Autevielle ("Lord of Sillègue, Athos, and Autevielle"), better known as Armand d'Athos (c. 1615 – December 21, 1643), was a Gascon Black Musketeer of the Maison du Roi in 17th-century France. He took his name from the small market town of Athos-Aspis on the Gave d'Oloron, close to Sauveterre-de-Béarn and Autevielle. Athos was the first cousin once removed to the Comte de Troisville and first cousin of Isaac de Porthau.

According to the semi-fictional Mémoires de M. d'Artagnan, he formed a close friendship with Henri d'Aramitz and the aforementioned de Porthau, and they were called the "three brothers". He served as the inspiration for Alexandre Dumas's character Athos in The d'Artagnan Romances.