1 Groschen - Frederick I

Frederick I of Württemberg-Mömpelgard — the French designation for Montbéliard — ruled this small German-speaking enclave deep within French Burgundy, a jurisdictional anomaly that persisted for centuries. The county had passed to the Württemberg line in 1397 and would remain a Protestant outpost surrounded by Catholic territory until French annexation in 1793. This groschen was struck during a two-year window that corresponds with Frederick's early consolidation of authority before his later fame as a patron of the Tübingen court.

The multiple catalog concordances — Ebner, Debard, Dy féodales — reflect how thoroughly this series has been studied across both German and French numismatic traditions, a consequence of Montbéliard's dual cultural inheritance.