Born in Nancy, Lorraine, the son of a lawyer, he was brought up in his father's profession. During the first phase of the French Revolution under the National Assembly he was appointed procureur-syndic of the district of Pont-à-Mousson in his home department of Meurthe.
French Revolution
Elected as a representative of the Département of Meurthe to the Legislative Assembly, and then again elected to the National Convention as a deputy for Meurthe. For Convention he was appointed a member of the committee for finances, and briefly was appointed to the Committee of Public Safety by resolution of the National Convention to present his plan for food procurement, but did not join the committee's sessions. Mallarmé attached himself to the Montagnard faction and voted for the death sentence in the trial of Louis XVI. He served as President of the National Convention and presided over the debates about proscription of the Girondin faction, rivals of the Montagnards, but vacated the chair at vital moments. Mallarmé did not chair the evening meeting of 1 June 1793 and chaired only the first part of the session of 2 June 1793, when Marie-Jean Hérault de Séchelles replaced him in chair until the end of the session.
He served on several missions, including to the Departments of Meurthe, Vosges and Haute-Saône which was in support of the levée en masse, to the army of the Rhine, and again over winter 1793-1794 to establish revolutionary government in Meuse and Moselle. While on the latter mission he earned a notorious reputation for senseless arrests and executions. The most heinous example is when he ordered the execution of the sentence of death decreed by the Revolutionary Tribunal on some young girls at Verdun who had offered flowers to the Prussian soldiers when they entered the town. He thus joined the ranks of Tallien, Fréron, and Fouché as perpetrators of the worst excesses of Terror, and like them found his position growing tenuous. He secured his survival when he spoke against Maximilien Robespierre in the course of the Thermidorian coup.
Thermidorian Reaction
In the reactionary political order that followed the demise of Robespierre, Mallarmé was sent on mission to Haute-Garonne and Gers. It was an entirely different part of France than he had been involved with heretofore, and similarly, he pursued a very different set of goals, closing down the terroristJacobin clubs and setting free prisoners who had been locked away during the Terror as enemies of the state. Alas, his own terrorist activities caught up with him and he was denounced and arrested, but he was released soon after the amnesty of 26 October 1795.
In 1796 he was appointed by the Directory commissioner for the organization of the départements of Dyle and Mont-Tonnerre. Under the Empire, Mallarmé was collector of the droits réunis at Nancy, and lost his money in 1814 in raising the levée of volunteers. Appointed sous-préfet of Avesnes during the Hundred Days, he was imprisoned by the Prussian authorities in revenge for the death of the maidens of Verdun, and held for six months in Wesel. He took refuge in Brussels and then Mechelen, and remained in exile during the Bourbon Restoration. He died in Mechelen.
