Altar of the Three Gauls

About

The Ara trium Galliarum, or ‘Altar of the three Gallic provinces', was a Roman Sanctuary near Lugdunum (today Lyon in France). The Altar was established to the goddess Roma and Augustus. In the 2nd retreat of the 1st century BC, Drusus built the critical place as part of the preparation for its offensive in Germania. Once a year on August 1 the Concilium Provinciae, the province council of the Gallic provinces, puts at that place. The main function of the council was to sacrifice to the Roman Emperor, elect a prayer of Rome and Augustus for the coming year, and arrange public games. In this way, the Gallic tribes demonstrated their allegory to Rome. Analogous to the Ara trium Galliarum was the Ara Ubiorum, constructed in Colonia Claudia Ara Agrippinensium (modern Cologne) for the Germanic provincial council.

References: Duncan Fishwick: The dedication of the Ara trium Galliarum. In: Latomus, Vol. 55, 1996, pp. 87–100.