Yves and Marie-Josèphe argue over her royal commission

Yves and Marie-Josèphe argue over her royal commission at a moment when courtly recognition threatens to pull the siblings’ shared work in different directions. Their disagreement is not simply about music versus scientific drawings: it exposes competing ideas of duty, the King’s authority, and whether Marie-Josèphe may claim an achievement of her own while still supporting Yves.

Causes and Setting

The argument follows Marie-Josèphe’s musical success at court. She has played a short piece that Domenico Scarlatti heard and performed for his father, M. Coupillet; M. Coupillet then heard it and admired it. The court’s response has brought Marie-Josèphe an opportunity to please Louis XIV, but the honor arrives amid religious and professional pressures. Pope Innocent XII disapproves, and Yves believes his sister’s musical commission competes with work he needs her to complete.

The scene begins as the courtiers leave to join Louis XIV. M. Coupillet, visibly jealous, turns away and has the chamber orchestra play one of his own cantatas, a pretty composition without a daring note. His reaction sharpens the contrast between the music that has attracted attention and the conventional court performance that replaces it. Marie-Josèphe is shocked by his behavior and distressed by the Pope’s disapproval; Yves, meanwhile, demands to know what she was thinking.

The Siblings’ Dispute

Marie-Josèphe explains that she wanted to please both Yves and Louis XIV. She insists that the piece was only a little song, recounting how Scarlatti carried it to M. Coupillet. Her private realization that M. Coupillet surely no longer admires it shows how quickly praise has turned unstable. Yet she does not treat that reversal as a reason to retreat from the commission.

Yves frames the issue as a change in her priorities. He recalls that she had wanted to help him with his work and accuses her of yielding to frivolity. His complaint makes the practical stakes explicit: the Academy needs the sea-monster drawings, and he says they must have them as soon as he finishes the dissection. He asks how she can do both. For Yves, the drawings are more important than the brief musical task, and his insistence connects his scientific project to an expectation that Marie-Josèphe will continue to serve it.

Marie-Josèphe answers that the music will take only a few minutes and promises that the drawings will be ready. She appeals to the trust they shared as children, asking whether Yves can forgive a single error and whether he trusts her anymore. The exchange turns from scheduling to kinship: her defense is not that his work no longer matters, but that he should not interpret her acceptance of another responsibility as abandonment of him. Yves’s short judgment that she has changed meets her reply that he has changed too, leaving both siblings’ accusation unresolved.

Royal Authority and Religious Objection

The sharpest divide concerns Louis XIV’s commission and Pope Innocent XII’s disapproval. Yves argues that the King should not have asked Marie-Josèphe to undertake it and, once the Pope objected, should have submitted himself. His position places obedience to religious authority above the royal request. Marie-Josèphe counters that Louis XIV is the King and has a right to ask; accepting his commission, in her view, is not merely indulgence in a distracting pleasure.

She also describes the appointment as another honor for their family, while acknowledging that it does not compare with Yves’s own distinction. Her request to be allowed something of her own, in honor of their father, gives the dispute a personal and familial dimension. She is trying to preserve her connection to Yves’s work while asserting that her courtly recognition has value in its own right. The scene does not establish that either sibling abandons the other’s concerns: Marie-Josèphe promises to finish the drawings, while continuing to defend the commission.

Warning and Immediate Outcome

Lucien de Barenton, Count de Chrétien, interrupts to warn that Louis XIV may be disturbed by the argument. His caution is directed not simply at the siblings’ words but at the presence of observers who may report them to the King in secret. The warning reveals the political risk surrounding even a private disagreement: the siblings are alone in the State Apartments, but not safely beyond the court’s scrutiny.

Marie-Josèphe is faint with hunger and would rather leave the dispute to join the courtiers at midnight supper. Yves instead leads her farther into the apartments, to the dim, deserted Salon of Mercury. Beneath the painted messenger of the gods, the siblings return to the drawings, trust, and the Pope’s objection. The scene ends without a reconciliation or a decision to cancel the music: they cross the salon together in silence. Their continued movement side by side preserves their closeness, even as the silence marks the unresolved cost of their conflicting loyalties.