sentences:  Although Horschbach was the seat of an "Unteramt" as early as the Late Middle Ages, it was not the seat of a parish, and indeed until the late 18th century, it did not even have its own village church.In the Reformation, the villagers all converted in 1556, as Rhinegravial subjects, to Lutheranism, and were still Lutheran in 1595 when the village was ceded by the Rhinegraviate to the Duchy of Palatinate-Zweibrücken, which had already converted to Calvinism.Even so, most people in Horschbach also converted to Calvinism.