1 Obol - Ferdinand II lion

Ferdinand II of León struck this issue during a reign defined by aggressive territorial consolidation and near-constant friction with Castile, Portugal, and the Almohad Caliphate simultaneously. The billon composition reflects the chronic silver shortage afflicting Iberian mints in the late twelfth century, as frontier warfare drained bullion reserves faster than trade could replenish them. León's monetary output under Ferdinand has only been systematically catalogued in recent decades — the Imperatrix corpus remains the primary reference, and attribution of individual dies is still unsettled among specialists.