Denier - Charlemagne Treviso mint, CΛRLVS REX FR

Charlemagne's monetary reform of 793–794 — the same reform that redefined the silver pound and established the 240-denier system that would dominate European coinage for centuries — shifted production away from the scattered Merovingian model toward a network of controlled royal mints. Treviso, in the northeastern March, was one of the more active Italian workshops under Carolingian administration, its output reflecting the logistical demands of maintaining authority across the Alpine frontier.

The multiple reference concordances here are telling: this type has attracted sustained scholarly attention precisely because the Treviso dies show enough variation across the CNI sequence to suggest several distinct production phases within the 793–812 window.