Possible Clues:

• Fictional character in 'The Three Musketeers'
• Pal of Athos
• Brand of cologne with a literary name
• One of the 'Three Musketeers'
• Fragrance sharing a name with a literary character
• Irons, in ''The Man in the Iron Mask''
• Associate of Athos and Porthos
• Colleague of Athos and Porthos
• Cohort of Athos
• Priest/plotter of French fiction