Solidus - Louis I bust facing right

Louis I inherited the Frankish throne in 814 following Charlemagne's death and almost immediately convened the Council of Aachen, which set the tone for a reign far more ecclesiastically constrained than his father's. The bust-facing-right solidus type is closely associated with the earliest years of his sole rule, before the monetary reforms of 818 pushed imperial coinage toward more abstracted, cross-heavy designs. The type's narrow four-year window and relatively small surviving population across multiple reference corpora — Prou, Morrison, Gariel — suggest limited and geographically concentrated minting, most probably at the palace mint.