In the spring of 1792 he received the rank of marechal de camp in command of the cavalry in the army of the north; but the influence of the extremists becoming predominant he took indefinite leave of absence, and settled at Auteuil, where, with Condorcet and Cabanis, he devoted himself to scientific studies.
Santerre was appointed marechal de camp on the 23rd of October 1792, and subsequently general of division.
Thanks to the friendly intervention of the marechal du camp, baron Duteil, Bonaparte once more gained leave of absence for three months and reached Corsica in September 1791.
At the outbreak of the Revolution the chief of the family was Henri Louis Auguste, marquis de La Rochejacquelein, marechal de camp in the royal army, who had three sons named after himself - Henri, Louis and Auguste.
de Ganniers, " La Derniere Campagne du marechal de Rochambeau " in the Revue des questions historiques (1901).