 A permanent solution to the dispute came only in 1733 in the so-called Succession Treaty of Mannheim, which resolved the situation in the Electorate of the Palatinate's favour.While the two villages were nominally united as of 1558, only in the course of the 18th century did they finally grow together, all the while recovering from the various wars’ ravages.During the Middle Ages, Berschweiler had been held to be the more important village, but now Wiesweiler was gaining in importance.