 In addition to the responsible posts already mentioned, he filled those of grand penitentiary, prefect of the Signature of Justice and of the Congregation of the Index, and pro-secretary of Briefs.He assisted in the preparation of the Concordat, and was present at the election of Pope Pius VII in 1800, whom he later accompanied to Paris in 1804.He participated in the Coronation of Napoleon Bonaparte as Emperor of the French.