During the time of the French Revolution and Napoleonic French rule, the Rhine’s left bank, and thereby Wiesweiler and Berschweiler too, were ceded to France. By this time, the two villages had been bound fast into one, under the name Wiesweiler. The village belonged to the Canton of Grumbach and the "Mairie" (“Mayoralty”) of Offenbach, as well as to the Arrondissement of Birkenfeld and the Department of Sarre. As early as 1793, French Revolutionary troops marched into the Glan valley and stationed themselves in the villages around Grumbach. This led to assaults on the local population.