Sanctuary of the Three Gauls

The Sanctuary of the Three Gauls is a Roman archaeological site in Lyon that extended along the southern slope of the Croix-Rousse hill and comprised various structures. The location featured a large altar, ceremonial spaces, substantial masonry walls, marble plates with ornamental details, and numerous inscriptions.

Emperor Augustus founded the site in 12 BCE as a center to demonstrate the loyalty of several Gallic peoples to Rome. This project marked a significant moment in establishing Roman authority in the region.

The sanctuary served as a gathering place where Gallic representatives met annually to reaffirm their connection to Rome and discuss shared concerns. These ceremonies took place in a solemn setting that underscored the gathering's importance for the region.

The archaeological remains are located near the present-day Jardin des Plantes, where you can see foundations and walls. Visitors should know that the site is mostly underground and some sections are only visible during excavation work.

The site contained an amphitheater where the seating areas had the names of Gallic representatives carved into the stone, highlighting their importance to the project. The structure was also designed as a venue where public spectacles and gatherings could take place.

Location: 1st arrondissement of Lyon

Architectural style: ancient Roman architecture

GPS coordinates: 45.77056,4.83056

Latest update: December 8, 2025 19:53