Mademoiselle D'Aubigny-Maupin...

One of many 19th century summaries, unusual for tying la Maupin to abbé de Choisy. In my usual clumsy translation, that passage reads:

This bizarre heroine of Tasso, this new bourgeois Herminie, made in the theater of Bourges, a conquest as surprising herself. He was the famous Abbé de Choisy, this real-world Tiresias, who began as Sardanapalus [an effeminate debauchee, sunk in luxury and sloth] and ended as St. Augustine. He was living in his castle Crepon, where he passed himself off as the Countess de Barres, so as to take in his net all the doves in the area, and thus preparing for the Girondin, [Jean-Baptiste] Louvet [de Couvray] all the most beautiful scenes of his novel [Les Amours (or "Les Aventures") du chevalier de] Faublas.

The Abbé de Choisy, with his chandeliers of diamonds, his rouge, his flies and his lady-like voice, amused Mlle Maupin for a time, but the new loves of the transvestites of both sexes did not last long; the Abbe became fickle, and so his lover felt herself entitled to be unfaithful and left the brilliant Countess de Barres when he had won the theology prize at the Sorbonne, and returned to Paris, where she took the name of her husband.

I've no idea where this tie to de Choisy comes from, or quite how it would fit into the chronology, but it is delicious.