After the time of the Reformation, the two villages’ histories generally followed a common path. Under the Treaty of Marburg signed on 18 November 1543, both villages passed to the County Palatine of Veldenz, later Veldenz-Lützelstein, which Count Palatine Wolfgang had set up for his uncle, Ruprecht, and whose residence town was held to be Lauterecken. The founding of this new county was a courtesy for Ruprecht, who as Wolfgang's guardian in his younger years, along with Wolfgang's mother Anna, had administered the Duchy of Palatinate-Zweibrücken. This did not change any of the feudal arrangements among the lower nobility at first. Wiesweiler was at this time held as a fief by the family Fust von Stromberg, whereas Berschweiler was likewise held by the Lords vom Stein. The family Fust von Stromberg sold Wiesweiler, likely in 1557, to the Waldgraves and Rhinegraves. Since the Counts Palatine of Zweibrücken were Wiesweiler's supreme fiefholders, there was no basis in law for this sale, and therefore in 1558, Waldgrave and Rhinegrave Philipp Franz forsook his rights and claims in Wiesweiler in favour of Duke Wolfgang of Zweibrücken, but Philipp Franz's loss was offset somewhat by Wolfgang's payment of an indemnity amounting to 500 "Gulden". Beginning at this time, the village belonged to the "Schultheißerei" of Lauterecken in the like-named "Oberamt". Wolfgang transferred the village forthwith to Veldenz-Lützelstein, in line with the terms of the Treaty of Marburg. Count Palatine Ruprecht, meanwhile, had died, and Georg Hans (b. 1543) had succeeded him, with Duke Wolfgang ruling as his administrator before his coming of age. In Berschweiler, the Lords of Kellenbach still held certain rights until the old feudal order was swept away in Napoleonic times, first and foremost rights to the forest.