However on 16 September 1792, Augustin was elected to the National Convention, 19th out of 24 deputies, with 392 votes out of 700 cast, by the voters of Paris, and he joined his brother in The Mountain and the Jacobin Club.
但是，1792年9月16日，奥古斯丁被选入国民公会，获得24名代表的19票，以及巴黎选民700票中的392票，他加入了哥哥所在的山岳党和雅各宾俱乐部。