1. Athos:
- D'Artagnan first encounters Athos during a duel arranged by the Comte de Rochefort. Rochefort, an enemy of d'Artagnan, hires three ruffians to attack the young man.
- Athos, who happens to be observing the commotion, intervenes and helps d'Artagnan defeat his opponents.
- Recognizing each other's skill, d'Artagnan and Athos become friends.
2. Porthos:
- Porthos and d’Artagnan also meet during the fight arranged by Rochefort.
- Porthos arrives as the third musketeer to support Athos and d'Artagnan against the ruffians.
- After the fight, Porthos and d’Artagnan bond over their shared love of adventure and their loyalty to the musketeers.
3. Aramis:
- D’Artagnan meets Aramis later, during a chance encounter at a local inn.
- Aramis is initially disguised as a priest, but d'Artagnan discovers his true identity and confronts him.
- Despite their initial misunderstanding, d'Artagnan and Aramis eventually form a strong friendship.
Through their shared adventures and camaraderie, d'Artagnan and the Three Musketeers develop a close bond of friendship and loyalty, becoming inseparable companions in their quest for justice and honor.