a French statesman and diplomat. In 1656 he bought a counsellorship at the parlement of Metz, and in 1658 was appointed intendant of Alsace and president of the newly created sovereign council of Alsace. In this position he had to re-organise the territory recently annexed to France. The steady support of his brother at court gained for him several diplomatic missions to Germany and Italy (1659–1661). In 1662 he became marquis de Croissy and président à mortier of the parlement of Metz.
