Archaeologists In France Just Uncovered An Ancient Roman Mausoleum That Was Likely Modeled After Emperor Augustus’ Tomb

Published September 2, 2025

Presumably built for a local elite, this 2,000-year-old mausoleum would have been visible to anyone passing through what was once the Roman colony of Vienne, founded by Julius Caesar in 47 B.C.E.

Ancient Roman Mauseoleum Near Lyon

Musée Gallo-RomainThe Roman-style mausoleum found in Saint-Romain-en-Gal, France, which is similar to the tomb of Emperor Augustus.

Archaeologists in France have made an exceptional discovery in Saint-Romain-en-Gal, near Lyon: a well-preserved Roman mausoleum likely modeled after the tomb of Emperor Augustus.

Built around 50 C.E., the structure offers an unprecedented look at elite funerary architecture in Roman Gaul.

Why The Roman Mausoleum Recently Found Near Lyon Is Especially Impressive

In a press statement from the Musée Gallo-Romain, archaeologists describe the monument as a large circular tomb whose interior spanned just over 49 feet and which likely stood nearly 20 feet tall. Its scale and form seem to mirror the iconic tomb of Rome’s first emperor, Augustus, suggesting that the deceased — who has not been identified — held significant social or political status.

Only 18 tumulus-style mausoleums like this one have ever been documented in France — and this one, due to its preservation and circular design, stands alone in its largely intact condition, which researchers described as nothing short of “exceptional.”

Roman Mausoleum In Lyon France

Musée Gallo-RomainArchaeologists during the excavations of the mausoleum found near Lyon.

Giulia Ciucci, scientific director of the Saint-Romain-en-Gal archaeological site, emphasized the symbolic importance of the design. Researchers believe that the monument was designed to convey imperial prestige and that it belonged to a person “who, even dead, must still be present in the world of the living. Most certainly a character belonging to the aristocratic elite, with an important political role and linked to imperial power.”

What Saint-Romain-En-Gal Was Like In The Days Of Ancient Rome

The Rhône Valley was one of the most important arteries of the Roman Empire in Gaul, linking Mediterranean trade routes to northern provinces. The site of Saint-Romain-en-Gal stood across the river from Vienne, a thriving Roman colony and political hub.

Roman Mausoleum Modeled After Tomb Of Augustus

Musée Gallo-RomainThe identity of the mausoleum’s occupant, or occupants, remains unknown.

In antiquity, it would have been teeming with villas, workshops, warehouses, and public buildings, prospering both economically and culturally due to its location.

Previous archaeological excavations have revealed lavish mosaics, thermal baths, and evidence of wine production, all of which showcased the wealth of the elite who lived there. That such an ambitious mausoleum would also be found at Saint-Romain-en-Gal only further emphasizes this status.

Clearly, the builder’s family meant to assert their position within the Roman hierarchy.

Mausoleum Of Augustus

Wikimedia CommonsThe Mausoleum of Augustus in Rome in 2016, before restoration work on it began.

The inspiration for the monument seems to be none other than the Mausoleum of Augustus in Rome, erected in 28 B.C.E. It housed the remains of the first Roman emperor, Augustus, as well as later members of the Julio-Claudian dynasty of emperors.

For provincial elites in Gaul, constructing a smaller version of this magnificent tomb was simultaneously an homage and an assertion of their own power. It tied their legacy to the very heart of the empire, even as they lived on its periphery. In a way, this newly-uncovered mausoleum’s presence shows just how far Roman influence and identity extended beyond the borders of the city of Rome itself.

How The Public Was Able To Watch Archaeological Work Unfold In Real Time

The excavation was a fairly public display, open for viewing to visitors, students, and residents throughout the summer season. This rare transparency allowed visitors to connect with ancient history in real time, in a manner atypical of such sites.

“We have all dreamed of being on excavations and being there when a discovery is made,” said Martine Publié, vice president of the Rhône department overseeing culture and tourism.

Roman Mausoleum Found Near Lyon

Musée Gallo-RomainThe site was open to visitors and students throughout the summer.

Émilie Alonso, director of the site’s museum, said that this milestone “underlines the entire vocation of the Saint-Romain-en-Gal site museum” — essentially, a museum established on the site of a discovery, merging archaeological excavation and exhibition.

Excavation efforts will extend through 2026 and 2027, under partnerships with universities in Aix-Marseille, Franche-Comté, and the French National Center for Scientific Research (CNRS). Objectives for these future digs include identifying the tomb’s occupant and illuminating the broader history of commerce and politics in the region.

In the words of Giulia Ciucci, “The adventure has only just begun.”


After reading about this Roman-style mausoleum unearthed in France, learn all about the Pax Romana period of ancient Rome, which began with the reign of Augustus. Then, read all about why Rome fell.

author
Austin Harvey
author
A staff writer for All That's Interesting since 2022, Austin Harvey has also had work published with Discover Magazine, Giddy, and Lucid, covering topics including history, and sociology. He has published more than 1,000 pieces, largely covering modern history and archaeology. He is a co-host of the History Uncovered podcast as well as a co-host and founder of the Conspiracy Realists podcast. He holds a Bachelor's degree from Point Park University. He is based in Pittsburgh, Pennsylvania.
editor
John Kuroski
editor
Based in Brooklyn, New York, John Kuroski is the editorial director of All That's Interesting. He graduated from New York University with a degree in history, earning a place in the Phi Alpha Theta honor society for history students. An editor at All That's Interesting since 2015, his areas of expertise include modern American history and the ancient Near East. In an editing career spanning 17 years, he previously served as managing editor of Elmore Magazine in New York City for seven years.
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Harvey, Austin. "Archaeologists In France Just Uncovered An Ancient Roman Mausoleum That Was Likely Modeled After Emperor Augustus’ Tomb." AllThatsInteresting.com, September 2, 2025, https://allthatsinteresting.com/saint-romain-en-gal-france-roman-mausoleum. Accessed September 2, 2025.