History of North Rhine–Westphalia and other feudal areas of power. The Peace of Westphalia of 1648, signed in Münster and Osnabrück, ended the Thirty Years' War. The concept of nation-state sovereignty resulting from the treaty became known as "Westphalian sovereignty". As a result of the Protestant Reformation, there is no dominant religion in Westphalia. Roman Catholicism and Lutheranism are on relatively equal footing. Lutheranism is strong in the eastern and northern parts with numerous free churches. Münster and especially Paderborn are thought of as Catholic. Osnabrück is divided almost equally between Catholicism and Protestantism. After the defeat of the Prussian Army at the Battle
Christendom established the religious, political and geographic divisions of Christianity, and this was established with the Treaty of Westphalia in 1648, which legally ended the concept of a single Christian hegemony in the territories of the Holy Roman Empire, despite the Catholic Church's doctrine that it alone is the one true Church founded by Christ. Subsequently, each government determined the religion of their own state. Christians living in states where their denomination was "not" the established one were guaranteed the right to practice their faith in public during allotted hours and in private at their will. The European wars of religion