Obol - Charles II/Charles III Rennes

The date range here spans the Edict of Pîtres in 864 — Charles the Bald's sweeping monetary reform that centralized minting authority and suppressed unauthorized dies across the Frankish realm — through the reign of Charles the Simple, whose grip on the western kingdom grew increasingly contested by Viking encroachment and aristocratic defection. Rennes sat at the volatile frontier with Brittany, a region that was formally ceded to the Breton ruler Alain le Grand around 874 and remained a zone of shifting loyalties throughout this period. That a royal Carolingian obol continued to circulate from this mint under such conditions says something about the persistence of Frankish monetary infrastructure even where political control was thin.