sentences:  Under Emperor Napoleon’s rule, the House of Leyen got its personal property back.Under French rule after 1801, Gries lay in the Department of Sarre, whose seat was at Trier, in the Arrondissement of Saarbrücken, in the Canton of Waldmohr and in the "Mairie" (“Mayoralty”) of Miesau.The French Empire lasted until Napoleon’s final defeat at the Battle of Waterloo (18 June 1815).