The Bernajoux affair is the conflict in which d'Artagnan’s private challenge to Bernajoux, a Guardsman of his Eminence, becomes a general melee involving the King’s Musketeers and their allies. What begins with an insult at a tennis court threatens to become an armed assault on the Hôtel de la Trémoille, but the impending audience with Louis XIII forces the combatants to stop before the quarrel can become an even larger political crisis. The affair nevertheless gives d'Artagnan a conspicuous victory, reveals the solidarity and anti-Cardinalist reputation of the Musketeers, and establishes truth itself as the means by which M. de Treville settles the dispute.

Causes and Immediate Stakes

The immediate cause is an insult delivered while d'Artagnan is waiting for his audience with Louis XIII. The three Musketeers have been informed of the honor accorded them, and d'Artagnan, imagining that the audience may determine his future, goes early to Athos’s apartment. Athos, Porthos, and Aramis are playing tennis near the stables of the Luxembourg, while Athos’s recent wound prevents him from exerting himself fully. D'Artagnan, who does not know the game, remains at the edge of the court after a ball launched by Porthos passes so close to his face that he fears an injury would prevent him from appearing before the king.

Among the spectators is a Guardsman of his Eminence who is still angered by the defeat of his companions on the preceding day. He interprets d'Artagnan’s withdrawal from the game as cowardice and suggests to a neighbor that the young man is afraid because he is only a Musketeer apprentice. D'Artagnan turns immediately toward the speaker. When the Guardsman repeats the insult and challenges him to make something of it, d'Artagnan answers that the meaning is too clear to require explanation and asks him to follow. The exchange turns speech into a formal summons: the affront to d'Artagnan’s dignity must be answered at once.

The adversary is Bernajoux, whose name is widely known because it frequently appears in the daily brawls that even the edicts of the cardinal have failed to suppress. D'Artagnan, unlike nearly everyone else, does not know the reputation attached to the name. That ignorance removes intimidation from the encounter, while his youth, fresh confidence from the previous day’s apprenticeship in combat, and hopes of royal favor make retreat impossible. The duel therefore joins personal honor to institutional rivalry: Bernajoux represents the Cardinal’s Guards, while d'Artagnan is already identified with the King’s Musketeers.

The Duel and the Melee

Because the audience with Louis XIII is fixed for midday, d'Artagnan refuses Bernajoux’s suggestion that they move behind the Abbey St. Germain or to the Pre-aux-Clercs. He has little time to spare and insists on fighting immediately. Outside the tennis court, in an apparently empty street, he declares that Bernajoux is fortunate to be dealing only with an apprentice Musketeer and orders him on guard. The haste gives the duel a practical limit, but it also heightens its recklessness: d'Artagnan is defending his honor under a deadline imposed by courtly ambition.

Bernajoux draws at once and springs forward, hoping that his greater reputation and the youth of his opponent will intimidate him. Instead, d'Artagnan stands firm. Their swords cross close to the hilts; Bernajoux is forced to retreat, and d'Artagnan exploits the moment when his opponent’s blade leaves the line. He frees his weapon and touches Bernajoux on the shoulder. D'Artagnan then steps back, but Bernajoux refuses to acknowledge defeat and rushes blindly upon him, impaling himself on d'Artagnan’s sword.

Bernajoux does not immediately fall or declare himself beaten. He breaks away toward the hotel of M. de la Tremouille, where a relative serves him, and d'Artagnan, unaware of the seriousness of the second wound, follows closely. The duel might have ended there, but Bernajoux’s companions, having seen him leave after exchanging words with d'Artagnan, rush from the tennis court with swords drawn and attack the young Musketeer. Athos, Porthos, and Aramis appear at once and drive the two Guardsmen back.

The conflict then changes scale. Bernajoux falls, and the Guardsmen call for help from the Hôtel de la Tremouille. Those within the hotel pour out against the four companions, who answer by calling for the Musketeers. The cry is effective because the King’s Musketeers are known as enemies of the cardinal and are popular for the hatred they bear to his Eminence. Soldiers from other companies join them: of three Guardsmen from M. Dessessart’s company who happen to pass, two assist the four companions, while the third runs to M. de Treville’s hotel to summon reinforcements.

The melee becomes general, with the numerical and political advantage shifting toward the Musketeers. The Cardinal’s Guards and M. de la Tremouille’s people retreat into the hotel and close the doors just in time to keep their opponents from entering. Bernajoux is carried inside in a very bad state. The victorious side, still inflamed by the encounter, even considers setting fire to the hotel as punishment for the audacity of its domestics in making a sortie against the King’s Musketeers. The intended escalation is stopped not by reconciliation but by the striking of eleven o’clock: d'Artagnan and his companions remember the audience and abandon the possibility of attacking the building.

The Dispute and Its Settlement

M. de Treville advises the four young men not to risk appearing before Louis XIII immediately, since the cardinal is already ahead of them and the affair may be used against them. He will see the king that evening, while they are told to return home and await news. The advice recognizes that the street fight has become a matter of court politics. A victory in combat does not automatically produce safety when the opposing side has the influence of the Cardinal’s Guards.

Treville chooses to make the first formal complaint. He sends a servant to M. de la Tremouille with a letter asking him to expel the Cardinal’s Guardsmen from his house and reprimand his own people for making a sortie against the King’s Musketeers. M. de la Tremouille replies that the Musketeers, rather than his household, have no right to complain: in his view, his people have been assaulted and his hotel nearly burned. Each nobleman is thus placed in a position where defending honor requires defending an incompatible version of the same encounter.

Rather than allow the written dispute to harden, Treville goes personally to the hotel. The two nobles greet one another with politeness and mutual esteem, though without friendship. M. de la Tremouille is a Protestant, seldom sees the king, and generally carries no party bias into his social relations; on this occasion, however, his manner is cooler because his esquire’s relative lies gravely wounded. Treville proposes that they ask Bernajoux himself to judge the dispute.

Treville first inquires about Bernajoux’s condition. The wound in his arm is not dangerous, but another thrust has passed through his lungs, and the doctor fears the result. Treville asks whether the wounded man has retained his senses and whether he can speak. Since Bernajoux can answer only with difficulty, Treville proposes that they go to him and adjure him, in the name of the God before whom he may soon appear, to tell the truth. Treville offers to accept Bernajoux as judge in his own cause, thereby placing the question of responsibility before the dying man rather than before partisan soldiers or rival commanders.

Truth, Consequences, and Significance

M. de la Tremouille accepts the proposal, and the two nobles descend to Bernajoux’s chamber. The wounded man tries to raise himself when they enter but is too weak and falls back almost senseless. After M. de la Tremouille revives him with smelling salts, Treville deliberately asks the other nobleman to question Bernajoux, so that no one can claim that the Musketeer commander influenced the testimony.

The result confirms Treville’s judgment. Placed between life and death, Bernajoux has no reason, or perhaps no strength, to conceal the truth, and he recounts the affair exactly as it occurred. His testimony validates d'Artagnan’s version: the insult led to the challenge, the duel produced the wounds, and the wider violence followed when Bernajoux’s companions and the hotel’s people entered the conflict. The truth does not erase the danger of the melee, but it prevents the wounded Guardsman’s household from turning the entire incident into an unqualified accusation against the Musketeers.

Treville wishes Bernajoux a speedy recovery, takes leave of M. de la Tremouille, returns to his hotel, and sends word that he expects the four friends at dinner. The atmosphere there is openly anti-Cardinalist, so the conversation centers on the two checks that the Cardinal’s Guardsmen have received. D'Artagnan is the hero of both fights, and Athos, Porthos, and Aramis willingly leave the congratulations to him. Their generosity marks a shift in his position: he is no longer merely an ambitious outsider seeking recognition, but a comrade whose courage has earned public honor and the approval of the three established Musketeers.

The affair’s decisive movement is therefore from insult to collective violence, and from collective violence to witnessed truth. It displays the culture of dueling as a system in which a single remark can demand immediate action, while the factional structure of military society turns private combat into a battle between rival households and companies. Yet the episode also places limits on that culture. The audience with Louis XIII interrupts the contemplated attack, and Bernajoux’s testimony offers a form of judgment more authoritative than reputation, numbers, or political allegiance. In that tension lies the event’s lasting narrative importance: d'Artagnan’s honor is proved by the sword, but the Musketeers’ cause is secured by solidarity, restraint, and the truth spoken by their wounded opponent.