Denier - Odo IV BG under the castle

Odo IV ruled Burgundy through inheritance from his mother Agnes, herself daughter of Robert II, and spent much of his reign attempting to consolidate ducal authority against persistent baronial resistance. The denier series attributed to his reign was almost certainly produced to fund the administrative and military costs of that consolidation — Burgundian billon issues of this period are workmanlike products of regional mints operating under ducal warrant, not centralized royal control. The Dumas classification distinguishes at least two die variants within this type, which hints at sustained production across several years rather than a single mint run.