Discover the
ancient city

Considered as the biggest and the best testimony of the Gallo-Roman period in the West, Jublains invites you to open the great book of ancient history.
A vast territory, almost equivalent to that of the Mayenne, was occupied by the Gallic people of the Diablintes. During the 1st century A.D., a “new town”, Noviodunum, was built on the site of Jublains and became the Roman capital of the Diablintes territory.
Preserved by time, the remains of the monumental sanctuary, the baths, the theater and the large fortified complex on the outskirts of the ancient city are open to the visitor’s gaze and curiosity… it is an exceptional archaeological site to discover.


Wander freely through the monuments located in the village. Twelve stages marked out by bronze discs inserted in the ground and information terminals allow you to discover the theater, the baths, the temple and the archaeological grounds reserved for excavations.


Discover the fortified complex of Jublains, the most spectacular building on the site. An impressive Gallo-Roman fortress that has not finished giving up its secrets. Venture your own guess !

From 2023 to 2025, the fortress walls are undergoing restoration work. Ask the museum about guided tours.


Excavation site scheduled: September and October 2023.

Since the end of the 18th century, the site of Jublains has been the subject of archaeological research, first carried out by amateurs with a passion for history and antiquities and then by professional archaeologists. Until 1995, most of the research focused on the public monuments of ancient Noviodunum.
Since the end of the 1990s, programmed excavations conducted by the Department’s archaeologists in several residential areas have made it possible to discover more about who the inhabitants of Noviodunum were and how they lived there. New detection methods (georadar) implemented in 2018 show that the site of Jublains has not yet delivered all its secrets… history continues to be written !
After June and July, with volunteers, the excavation site resumes, at the heart of the archaeological route, from September and will end at the end of October.

Residential building, early June 2023

Residential building, end of June 2023

Residential building, mid-July 2023

Shards after washing

Fragment of signed ceramic


Launched in 2020, a partnership between the Department and the IStoAR laboratory (EESAB – European Superior School of Art of Brittany, Rennes), specializing in research in virtual and augmented reality technologies, has led to the 3D restitution of the ancient sanctuary of Jublains. It is a considerable work of exploitation of archaeological excavation data and dialogue between scientists, archaeologists specializing in digital modeling, researchers in digital design, computer graphics, etc.. which has been conducted. The augmented reality restitution now allows us to see the main place of worship of the Diablintes in all its splendor. Each element of the decor, each column and capital has been modeled and “textured” for a more realistic rendering!


The heritage of Jublains makes it an important place of the Country of Art and History Coëvrons-Mayenne. To discover more about the village and the site, let yourself be told its history through the booklet to consult.

Go up the page