Question: what do the names of the three musketeers mean?
Answer: 'Athos', 'Porthau' (also also Portau or Portaut) and 'Aramitz' (Aramits) are all places, and the 'de' in their names means 'of', so Aramand (was lord) of Sillegue, of Athos and of Autevielle (all real places in south-western France!).