Mysterious find beneath field leads man to massive treasure hidden for centuries
German metal‑detecting hobbyist unearths 934‑coin Roman hoard near Cologne
A licensed hobbyist’s routine search with a metal detector in a rural field south of Cologne has yielded Germany’s largest Roman coin hoard ever found. The treasure, composed of 934 silver denarii, was discovered by Oliver Riedl in a field near Wesseling, a town on the western bank of the Rhine, and was reported to heritage authorities the same day.
The coins, dating from 125 to 150 CE, were buried during the reign of Emperor Hadrian. The hoard, weighing 6.8 pounds (≈3 kg), is now on display at the LVR‑Landesmuseum Bonn. According to the LVR Office for the Preservation of Archaeological Monuments in the Rhineland, the find is the largest coin hoard from Hadrian’s reign unearthed in Germany.
Riedl, who holds a license that permits him to use metal detectors on private and certain public lands, said the discovery came as a surprise. “It was clear to me there was something bigger buried here,” he told the Associated Press. His detector continued to pick up signals, prompting him to dig deeper and uncover the coins.
Experts who have examined the hoard say it could have represented the life savings of a single individual. Johannes Wienand, a professor of ancient history at the Technical University of Braunschweig, explained that a Roman legionary earned roughly 300 denarii per year. “This hoard is roughly equivalent to three years of a soldier’s gross salary,” he said. “A Roman soldier would need six, seven, eight, even more years to save this amount of money, maybe for his retirement.”
While the proximity of the find to the ancient city of Cologne and a legionary fortress in Bonn raises the possibility of a military connection, Wienand noted that the owner’s identity remains unknown. “It seems to have been the life savings of one person who put this treasure together and put it in a pot, buried it in the soil to save it for later,” he said. “And obviously the owner was never able to recover this treasure.”
The hoard’s composition—coins minted with the portraits and inscriptions of Emperor Hadrian—makes it a valuable “time capsule” of the day‑to‑day currency used by the Roman Empire. Some of the coins were cleaned and photographed before being entrusted to museum curators for careful conservation.
Wienand praised Riedl’s prompt reporting. “The metal detectorist was licensed. He had permission to look for finds like that. He immediately called the heritage officers,” he said. “He reported the find, and he contributed to an orderly exploration of this remarkable find.”
The discovery underscores the importance of responsible metal detecting. Riedl’s actions—he immediately contacted the LVR heritage office, and the find was handled by professionals—ensured that the hoard was preserved and added to the region’s cultural heritage.
The LVR‑Landesmuseum Bonn will keep the coins on public display, allowing visitors to see a tangible piece of Roman history that was hidden for nearly two thousand years in a German field. The find, announced by German authorities only recently, provides a rare glimpse into the economic lives of people living on the frontier of the Roman Empire.