KollweilerKollweiler is a municipality in the district of Kaiserslautern, in Rhineland-Palatinate, western Germany.WWW weilerbach.deGeographyKollweiler lies in the Northern Pfalz. To the north are the towns of Jettenbach and Rothselberg, and to the south are the towns of Schwedelbach and Reichenbach-Steegen. The closest city is Kaiserslautern, located to the southeast.HistoryEven before the Romans, Celtic descendants settled the area around Kollweiler.