Treville becomes D'Artagnan's commanding officer and institutional sponsor.
D'Artagnan presents himself to Treville in Paris, and Treville makes him a cadet after recognizing his description of an attacker.
Treville leads Athos within the King's Musketeers.
Treville is identified as the commander of the King's Musketeers, while Athos is one of the Musketeers under his command.
Porthos operates under Treville's military authority.
Treville commands the King's Musketeers, and Porthos is one of the Musketeers who serves in that group.
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