Possible Clues:

• Dueler of French lit
• Legendary musketeer in combat, hostile
• One of the musketeers in the novel 'The Three Musketeers' by Alexandre Dumas
• Greek mount; one of the Three Musketeers
• Dumas's Comte de la Fère, to fellow Musketeers
• The oldest Musketeer
• Musketeer in neat hosiery
• Friend of Aramis, Porthos and D'Artagnan
• Oldest of the three musketeers
• EIdest Musketeer