 At the opening session of 1830 Chantelauze was supported by the government in a bid to become President of the Chamber, winning 116 votes.In the secret committee of 15 March 1830 he protested against the proposed hostile address to the government.When Jean Joseph Antoine de Courvoisier resigned, King Charles X offered the Ministry of Justice to Chantelauze, who accepted on 19 May 1830 after much hesitation.