Oberthal, Switzerland, a municipality in the canton of Bern, Switzerland
It is situated approximately 7 km northwest of Sankt Wendel, and 35 km north of Saarbrücken.
Jean de Leyde (based on the historical John of Leiden), whose beloved, Berthe, is coveted by Count Oberthal, ruler of Dordrecht, is persuaded by a trio of sinister Anabaptists to proclaim himself king in Münster.