He presided over the banquet given by the society to the 221 deputies who had signed the address of March 1830 to Charles X, and threatened to reply to force by force. After the ordinances of 26 July 1830, he joined the National Guard and took an active part in the revolution. As secretary of the municipal commission, which sat at the hôtel-de-ville and formed itself into a provisional government, he was charged to convey to the chamber of deputies a protest embodying the terms which the advanced Liberals wished to impose on the king to be elected. He supported the idea of a constitutional monarchy against the extreme Republicans, and he was appointed one of the three commissioners chosen to escort Charles X out of France.