Treaties of Nijmegen
Jean-Jacques de Mesmes pursued a judicial and administrative career. He became conseiller au parlement, maître des requêtes, et conseiller d'état. In 1672 he was given his father's place as président à mortier at the parlement of Paris. He also became intendant of Soissons. It is often said that he participated in the signing of the Treaties of Nijmegen but this seems to be due to a confusion with his brother Jean-Antoine, the diplomat.