I’d like to preface this by saying that as much as I disdain using “Wiki” anything for a source, due to lack of available information, I did lean on it, a bit. However, I did use the resource links in those cases, to verify as much as I could. I only printed that information.

Some of the actual non Wiki sources & Wiki back up info was in French. I did translate some, but due to time constraints, could not do more.

Marquise de Pezay

https://catnaps.org/cassini/babaud.html#:~:text=Caroline%20de%20Murat%20was%20the,member%20of%20the%20Cassini%20family.

https://de.wikipedia.org/wiki/Alexandre-Fr%C3%A9d%C3%A9ric-Jacques_Masson_de_Pezay

The next is not a secure site. http://www.bibliotheque-dauphinoise.com/pezay.html

Marquise de Rougé 

https://www.bonabesse.fr/textes/Rouge.html

https://en.wikipedia.org/wiki/Natalie_Victurnienne,_Marchioness_of_Roug%C3%A9

https://archive.org/details/journaldmigrat00espi/page/12/mode/2up

https://en.wikipedia.org/wiki/Alexis_Bonabes,_Marquess_of_Roug%C3%A9 –

The Comtesse de Cérès

https://www.sallychristieauthor.com/secondary-characters1.html

https://artsandculture.google.com/asset/the-comtesse-de-c%C3%A9r%C3%A8s-%C3%89lisabeth-louise-vig%C3%A9e-le-brun/EwFGS4Muyzj1nw?hl=en

https://emuseum.toledomuseum.org/objects/55382/the-comtesse-de-ceres

https://artvee.com/dl/comtesse-de-ceres-former-title-from-1963-to-1992-lady-folding-a-letter/

Princess Anna Alexandrovna Galitzin

https://www.metmuseum.org/art/collection/search/656855

https://www.sartle.com/artwork/portrait-of-princess-anna-alexandrovna-galitzin-elisabeth-louise-vigee-lebrun