Ancillon took rank among the most famous historians of his day by his next work, Tableau des revolutions du systeme politique de l'Europe depuis le X V e siï¿½e (1803, 4 vols.; new ed., 1824), which gained him the eulogium of the Institute of France, and admission to the Academy of Berlin.
During this time he found plentiful leisure to write a series of works on political philosophy, such as the Nouveaux essais de politique et de philosophie (Paris, 1824).
La France, formant une espece de tours de politique constitutionnelle (4 vols., 1818-1820), as were his Discours a la Chambre des Deputes (2 vols., 1827).
Of Lavisse's Histoire de France); Ernest Renan, Etudes sur la politique religieuse du regne de Philippe le Bel (1899) A.
Fortunate as Nicholas was in the haute politique of the Church, he was equally so in his efforts to re-establish and maintain peace in Rome and the papal state.