Doctor of Civil and of Canon Law, and Advocate of the Parliament of Paris.
Censor Royal for History and Belles-Lettres.
Sent to Russia, first secretly, then officially, with the Chevalier Douglas
for the Purpose of re-establishing friendly Relations between that Country and France.
Secretary of the Embassy Extraordinary at the Court of Her Imperial Majesty, the Empress Elizabeth.
Captain of Dragoons and Aide-de-Camp to Marshal the Duke and to the Count de Broglio.
Secretary of the Embassy Extraordinary from France to Great Britain for concluding the Peace of 1763.
Knight of the Royal and Military Order of Saint Louis.
Resident, and afterwards Minister Plenipotentiary from France to Great Britain,
and, finally,
a Lady at the Court of Marie Antoinette,
and an occasional and honoured Inmate
at
L’Abbaye Royale des Dames de Hautes Bruyères,
La Maison des Demoiselles de St. Cyr,
and at the
Monastère des Filles de Ste. Marie.