[2] In the same year (24 October), he married Marguerite Geneviève Gayant, the niece of Antoine Vallot (fr), king's first doctor in the service of Louis XIV[5] and granddaughter of a royal provost of Clermont-en-Beauvaisis.

[8] During his 21 years in office, Daquin had a lot to do with the king: he had to treat a dislocation of the elbow following a fall from a horse, gouty arthritis, a boil in the armpit and necrosis of the palatine arch.

He constantly asked for boarding houses, abbeys and bishoprics for his own; his office brought him 45,000 pounds a year,[2] which enabled him to acquire the county of Jouy-en-Josas as well as the superintendence of the mineral and medicinal baths, waters and fountains of France.

His brothers, Pierre was the king's ordinary doctor, Luc was bishop of Fréjus and Louis-Thomas was parish priest dean of Saint-Thomas du Louvre in Paris.

D’Aquin had a son abbot, of very good morals, of great spirit and knowledge, for whom he dared to ask for [the archbishopric of] Tours, [...] and to press the king with the last vehemence.

She resolved to chase him away, and at the same time to take Fagon in his place"[nb 1] On 1 November 1693, D'Aquin was asked to retire to Paris, with a ban on seeing the king and writing to him, but with a pension of 6,000 pounds.