 Langenbach lay in the "Remigiusland", and thereby was originally subject to the lordship of the Bishopric of Reims, although within ecclesiastical organization, it belonged to the Archbishopric of Mainz.On the principle of "cuius regio, eius religio", all the villagers in the time of the Reformation, about 1534, had to convert as required by the Duke first to Lutheranism, and then in 1588, on Count Palatine Johannes I's orders, everybody had to convert once again, this time to John Calvin’s Reformed teachings.After the Thirty Years' War, freedom of religion was theoretically in place, though people in Langenbach remained mostly Calvinist, or at least generally Protestant after the Protestant Union was formed out of the Lutheran and Calvinist churches in 1817.