He then attached himself to the Girondists, voting in favor of Jean-Paul Marat's prosecution, and was consequently declared an enemy of the people in August 1793,.

[citation needed] In July, Charlotte Corday, the assassin of Marat, asked Le Doulcet to defend her, but he did not receive in time her letter so Claude François Chauveau-Lagarde was appointed instead to assist her during the trial.

[1][4] He returned to the Thermidorian Convention on 8 March 1795, and was noted for his moderation, especially after defending Prieur de la Marne and Jean-Baptiste Robert Lindet.

[1] During the 1814 Bourbon Restoration, Louis XVIII made him a Peer of France, and although he received a similar honor from Napoleon during the Hundred Days, he remained in the upper house after the return of the king.

He died in Paris, leaving memoirs and correspondence from which were extracted four volumes (1861–1865) of Souvenirs historiques et parlementaires, 1764-1848.