Marie-Victoire Jaquotot (January 15, 1772-April 27, 1855) was a 19th-century French painter.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Marie_Victoire_Jaquotot

Casket for Louis XVIII’s snuffbox also contained painted miniatures to be fitted successively into the lid of the snuffbox. They were painted by Marie-Victoire Jaquotot. Details, description here:
https://www.louvre.fr/en/oeuvre-notices/casket-louis-xviiis-snuffbox

Marie Victoire Jaquotot on Artnet: http://www.artnet.com/artists/marie-victoire-jaquotot/

Further reading:
https://www.oxfordartonline.com/groveart/
Marie Victoire Jaquotot
https://www.sothebys.com/en/auctions/ecatalogue/2013/old-master-paintings-n08952/lot.287.html