This Mithraic temple, aka Mithraeum of the Olympii, was discovered in the 15th century in Rome, although traces have been lost except for a few monuments with remarkable inscriptions.
The Mithraeum in the Chapel of the Three Naves was not linked to the cult of Mithras until recently because of a mosaic showing a pig, in the belief that it was an animal unfit for consumption in a temple of Eastern origin.
Journée scientifique du 17 décembre 2021 au Musée royal de Mariemont, dans le cadre de l’exposition 'Le Mystère Mithra. Plongée au cœur d’un culte romain'.