Archaeologists excavating a residential district in northeastern France have uncovered three ancient ceramic storage jars containing an astonishing cache of at least 40,000 Roman coins. The discovery in the village of Senon offers unprecedented insights into the financial practices and turbulent history of the Gallic Empire during the third and fourth centuries.
The excavation, conducted by France's National Institute for Preventive Archaeological Research (INRAP), revealed that these weren't hastily buried treasures but carefully maintained savings deposits. The first amphora alone weighed an impressive 83 pounds and contained approximately 23,000 to 24,000 coins, while a second vessel tipped the scales at 110 pounds with roughly 18,000 to 19,000 coins inside.
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The ceramic vessels used as "piggy banks" contained thousands of bronze and copper coins. (INRAP)
Ancient Banking System or Emergency Cache?
Unlike the romantic notion of ancient treasures hidden during times of crisis, these coin deposits reveal a more sophisticated financial system. The amphorae were positioned in carefully constructed pits adjacent to living rooms, with their openings level to the ground for easy access. Coins stuck to the rims indicate they were deposited gradually after the vessels were already in place, suggesting these functioned more like ancient savings accounts than emergency hoards.
The positioning and construction of these deposits challenge traditional interpretations of Roman coin hoards. Each jug sat in a well-engineered pit with the mouth accessible at ground level, allowing owners to make deposits and withdrawals as needed. This arrangement points to long-term financial planning rather than panicked concealment during dangerous times.
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One of the coin-filled amphorae being carefully excavated from its pit in Senon. (INRAP)
The Gallic Empire Connection
The coins themselves tell a compelling historical story. They bear the images of emperors Victorinus, Tetricus I, and Tetricus II, who ruled the Gallic Empire from 260 to 274 AD. This breakaway state controlled Gaul and surrounding provinces before Emperor Aurelian forcibly reintegrated these territories into the Roman Empire in 274 AD. The coins date to between 280 and 310 AD, a period of profound political and military upheaval in the region.
Archaeological evidence from the site paints a picture of a prosperous settlement that evolved from Gallic wooden structures to substantial Roman stone buildings with sophisticated features including underfloor heating and spacious basements. The density of Gallic-era remains, with more than one structure per square meter in some areas, indicates a thriving community existed long before Roman conquest.
Fire and Fortune
The settlement's fortunes took a dramatic turn in the early fourth century when a devastating fire swept through the residential quarter. Curiously, residents rebuilt atop the ruins, reusing walls and repurposing old cellars. However, their efforts were cut short by a second catastrophic fire around the middle of the fourth century, after which Senon was permanently abandoned. The forgotten coin deposits remained untouched for nearly 1,700 years.
The proximity of these three separate coin deposits, all from roughly the same period, raises intriguing questions about their purpose. One hypothesis suggests they may be connected to the military occupation known to have existed at Senon during this era, evidenced by fortifications located just 150 meters from the excavation site. The deposits could represent military payroll savings, administrative funds, or the accumulated wealth of Roman soldiers stationed in the region.
As archaeologists continue their analysis of the coins and their archaeological context, this discovery underscores the importance of professional excavation over illegal metal detecting. The contextual information preserved through scientific excavation provides invaluable insights into ancient financial systems, military administration, and daily life that would be forever lost through unauthorized treasure hunting.
Top image: One of the ceramic jugs containing thousands of Roman coins discovered in Senon, France. Source: Simon Ritz/INRAP
By Gary Manners
References
INRAP. 2025. Un Quartier d'Habitation de l'Agglomération Antique de Senon (Meuse). Available at: https://www.inrap.fr/un-quartier-d-habitation-de-l-agglomeration-antique-de-senon-meuse-20417
Brown, A., 2025. Archaeologists In France Just Found Two Ancient Roman 'Piggy Banks' Filled With 40,000 Coins. All That's Interesting. Available at: https://allthatsinteresting.com/senon-france-ancient-roman-piggy-banks
