Nonius Victor Olympus

Nonius Victor Olympius was a Roman senator (vir clarissimus) and Pater Patrum, the highest attested office within the Mithraic hierarchy, active at Rome during the middle decades of the fourth century AD. He is documented between AD 357 and 362 as the senior leader of the Mithraic community traditionally associated with the sanctuary beneath Piazza San Silvestro in Capite, although the precise location of this mithraeum has never been archaeologically confirmed (CIL VI 749-753; CIMRM 400-405; Canciani 2022; Chalupa 2023).

Together with Aurelius Victor Augentius, himself a vir clarissimus and Pater, Olympius presided over a carefully documented series of initiations into several Mithraic grades, including Leo, Perses, Heliodromus, Pater, and the enigmatic cryfii, between AD 357 and 362. These inscriptions constitute the most detailed surviving record of Mithraic initiation ceremonies from Late Antiquity and illustrate the continued vitality of the cult among members of the Roman senatorial aristocracy during the reigns of Constantius II and Julian.

The inscriptions also reveal the existence of a hereditary religious leadership within the Olympii family. By AD 376, following the apparent death of Nonius Victor Olympius, Aurelius Victor Augentius had succeeded him as Pater Patrumand initiated his own son, Emilianus Corfo Olympius, into the first Mithraic grade (hierocoracica), while the family’s grandson Tamesius Augentius Olympius later commemorated both his grandfather and the construction of a spelunca or Mithraic cave sanctuary. The evidence therefore documents at least three successive generations of senatorial Mithraists active within the same religious community.

The family’s inscriptions have attracted particular scholarly attention because of their unusually precise dating. Roger Beck has proposed that the initiation dates were deliberately coordinated with significant planetary conjunctions, especially those involving Saturn and Regulus, reflecting the sophisticated astrological interests of Nonius Victor Olympius, who was later remembered as caelo devotus et astris. Whether or not this interpretation is accepted, the Olympii inscriptions remain the clearest evidence for the organisation, leadership and ritual life of a late Roman Mithraic congregation.