3 December 2025 The Future is the Product of the Past

The Gallo-Roman Sanctuary Unearthed in France

During a recent archaeological excavation in the old Hôtel Dieu neighborhood of Rennes in north-western France, archaeologists discovered the remains of a once bustling ancient Roman city.

The excavations under the 19th-century hospital began in 2022, according to a June 18 news release from the French National Institute for Preventive Archaeological Research. Two years later, archaeologists are revealing the city’s appearance and how Roman daily life has been preserved under the earth.

The Hôtel Dieu neighborhood has seen tremendous upheaval and development since the city’s founding. Following significant excavation and embankment work, the first roads were constructed in the first century. The neighborhood’s interior was gradually filled with structures supporting both residential and commercial activity, constructed with low foundations and wooden posts.

The use of masonry was first demonstrated at the end of the first century with the building of a sizable sanctuary with a courtyard for the reception of the faithful. This sanctuary replaced a previous wooden structure that was constructed similarly. Stone-built homes, shops, and warehouses started to spring up, and the original roads were rebuilt, completely reintegrating the neighborhood into the thriving city.

During construction for a hospital in France, the ruins of an ancient Roman city was discovered. Photo: © Cyril Cornillot, Inrap
During construction for a hospital in France, the ruins of an ancient Roman city was discovered. Photo: © Cyril Cornillot, Inrap

The sanctuary, which dates to the third century AD, was discovered during the excavation of the area sacra, the north wall surrounding its courtyard. At least one temple is located within the northern portion of this wall, which is more than 100 meters long. To the south, a portion of an east-west street is integrated into the religious complex.



📣 Our WhatsApp channel is now LIVE! Stay up-to-date with the latest news and updates, just click here to follow us on WhatsApp and never miss a thing!!



Given its size and exclusivity within Rennes, it is possible that the sanctuary was once the civic sanctuary of the Redones, a group of Gallic people whose capital was the ancient Condate, which is now Rennes. These people are only known from inscriptions that were repurposed and found buried beneath the city wall.

Masonry at the turn of the first century allowed the Roman city to flourish. Photo: © Sandrine Lalain, Inrap
Masonry at the turn of the first century allowed the Roman city to flourish. Photo: © Sandrine Lalain, Inrap

During the 3rd century, the city also had a district with large private residences, according to the release. One had a large reception room where the owner could have received clients or guests, and it even had a heated floor. An air space was placed under the floor with columns, and then warm air would be pumped into the underground space, heating the floor above, researchers said.

The end of the 3rd century brought the decline of the neighborhood. The public sanctuary was dismantled, and the stones from the enclosing wall were recovered, possibly during the construction of the castrum around 270-280. To the northwest of the excavation, a domus was completely dismantled to open a quarry for extracting alluvial sands. Despite this, some residences continued to be occupied in the 4th century, leaving their mark on the landscape through the furniture discovered.

An open area under the floor allowed hot air to be pumped in and the floor to heat in one of the large private homes, researchers said.
 Photo: © Cyril Cornillot, Inrap
An open area under the floor allowed hot air to be pumped in and the floor to heat in one of the large private homes, researchers said. Photo: © Cyril Cornillot, Inrap

A funerary space was established in the ruins at the end of the third or the start of the fourth century. It was in use until the eighth century and housed more than 600 tombs.

Google Translate was used to translate the news release from the National Institute for Preventive Archaeological Research.

INRAP

Cover Photo: Excavations at the Rennes sanctuary. © Emmanuelle Collado, Inrap

Related Articles

Second Rare Inscription Honoring Justinian and Theodora Unearthed in Kosovo’s Ancient City of Ulpiana

3 August 2025

3 August 2025

In a discovery that sheds new light on Kosovo’s ancient roots, the country’s Minister of Culture, Hajrulla Çeku, announced via...

A 2,100-Year-Old Marble Statue of Mother Goddess Cybele Discovered in Ordu’s Ancient Kurul Castle

7 March 2025

7 March 2025

A breathtaking statue of the Mother Goddess Cybele, dating back 2100 years, was found at the historic Kurul Castle in...

200,000-year-old hand axe discovered in the northern part of Saudi Arabia

5 November 2023

5 November 2023

The Royal Commission for AlUla (RCU) of Saudi Arabia has announced that archeological excavation teams at the Qurh site in...

Archaeologists Use Song to Unveil the Legendary End of West Africa’s Kaabu Kingdom

19 March 2025

19 March 2025

As the archaeological discoveries at Kansala, located in present-day Guinea-Bissau, reveal the tangible remnants of the once-mighty Kaabu Kingdom, the...

High-status Macedonian tomb discovered in ancient Aegae, Central Macedonia

2 April 2024

2 April 2024

In the ancient city of Aegae (present-day Vergina) in Imathia, Central Macedonia, during the construction of the sewerage network, tomb...

Bosnia and Herzegovina Unearths Europe’s Largest Hoard of 2,000-Year-Old Bipyramidal Ingots from the Sava River

7 August 2025

7 August 2025

Previously recognized for its exhibitions on medieval manuscripts and regional folklore, the Franciscan Monastery Museum “Vrata Bosne” in Tolisa is...

A gilded silver Anglo-Saxon object “made by someone with a real eye for loveliness” has the experts baffled

2 January 2024

2 January 2024

An enigmatic Anglo-Saxon object has been unearthed in a captivating discovery near Langham, Norfolk, East of England. This gilded silver...

Sheikh Sultan Opened ‘Tales from the East’ Exhibition

28 April 2021

28 April 2021

The opening of the ‘Tales from the East’ exhibition organized by the Sharjah Book Authority (SBA) was held with the...

Britain’s Hidden Treasures: The Pieces of Rare Iron Age Helmet Found at Snettisham

19 January 2025

19 January 2025

Thanks to advanced scientific testing, the copper alloy fragments unearthed at Snettisham, Norfolk, at one of Britain’s most significant archaeological...

Archaeologists uncovered a kurgan tomb from a previously unknown culture

8 January 2023

8 January 2023

Archaeologists from the Siberian Federal University have unearthed a kurgan tomb and numerous bronze tools and artifacts from a previously...

Archeologists unearth largest rare wooden “Haniwa” Statue in Japan

10 December 2022

10 December 2022

The remains of a 3.5-meter-tall wooden “haniwa” statue have been discovered at one of the “kofun” ancient burial mounds that...

A Mysterious Human Face Carved on Stone Dated to Bronze Age Discovered in Kazakhstan

21 July 2024

21 July 2024

Kazakhstan’s rich archaeological landscape continues to reveal fascinating details about ancient civilizations. Recent research in the Akmola, and Pavlodar revealed...

4,500-Year-Old Idols Discovered at Tavşanlı Höyük in Western Anatolia

16 September 2025

16 September 2025

Archaeologists in Türkiye have uncovered a remarkable set of artifacts at Tavşanlı Höyük (Tavşanlı Mound), one of the largest Bronze...

Archaeologists find a 5,000-year-old piece of wood in Orkney, which they describe as “astonishing”

10 August 2021

10 August 2021

Archaeologists continue to make surprising discoveries in Orkney. Although organic materials are quite difficult to find, archaeologists have found a...

Bronze Age Petroglyphs discovered in Kazakhstan

1 May 2024

1 May 2024

Volunteers in Kazakhstan have discovered new petroglyphs from the Bronze Age. The rock carvings were found by volunteers of the...