[note 2][2][3] Isabelle lived in a private mansion on the street of Rue de la Chaise [fr].

[1] In 1768, Marie married Fabien Proteau, the valet of the Viscount de Jaucourt.

[1] On April 17, 1771, Marie became a widow, after 3 years of marriage, her husband, Fabien died.

[1] After the death of her spouse, Marie's daughter was cared for by Isabelle de Jaucourt.

[4] She received lessons from celebrated artists, Jean-Baptiste Regnault, François-André Vincent and Adelaide Labille-Guiard.