Quintus Mamilius Capitolinus

Quintus Mamilius Capitolinus was a Roman senator who served as legatus Augusti pro praetore of Asturia and Gallaecia and commanded the Legio VII Gemina during the Severan period. He is known from a now-lost altar discovered at Asturica Augusta (modern Astorga), probably erected around AD 197, on which he dedicated a monument to Iuppiter Optimus Maximus, Sol Invictus, Liber Pater and the Genius Praetorii for his own welfare and that of his family (TNMM 1247; CIL II 2634; CIMRM 804; Alföldy 1969; Alvar 2018, 182).

The inscription has traditionally been regarded as an expression of official Severan religious ideology rather than evidence of Mithraic worship. Both Clauss and Alvar considered it highly unlikely that the title Sol Invictus referred explicitly to Mithras in this context, since the dedication was made by a senior imperial official in an official capacity and follows a public religious formula rather than a mystery-cult pattern. Consequently, the inscription is generally excluded from catalogues of secure Mithraic evidence.

Nevertheless, Jaime Alvar Ezquerra has argued that Mamilius Capitolinus may have played an indirect role in the diffusion of eastern and solar cults in north-western Hispania. He notes the chronological proximity between Capitolinus’ dedication, the altar of the imperial procurator <b>Claudius Zenobius</b> at Asturica Augusta, dedicated to Deus Invictus, Sarapis and Isis, and the establishment of the Mithraeum of Lugo by Gaius Victorius Victorinus, a centurion of the Legio VII Gemina between AD 212 and 218. Although no direct evidence links Capitolinus to Mithraic initiation, Alvar suggests that his personal devotion to Sol Invictus may have formed part of a broader Severan religious environment that facilitated the introduction or revitalisation of Mithraic and Isiac cults in the region.