Council of Five Hundred
After the establishment of the Directory in 1795, Grégoire was elected to the Council of Five Hundred. He and his fellow council members opposed the "coup d’état" of 18 Brumaire in which Napoleon seized power and the Hundred Days. The Council issued a proclamation the day after the coup, and so it was named "The Council of Five Hundred Concurs." The council warned in this proclamation that this coup would cause France to revert to the times before the Revolution.