Pater sacrorum and founder of the Mithraeum under the Basilica of S. Lorenzo. He uses the signum Proficentius, which means the efficient, the one who succeed.
found in the temple.
Other brothers from Roma
This cylindrical marble altar was dedicated by the same Pater Proficentius as the slab, both monuments found in the Mithraeum beneath the Basilica of San Lorenzo.
Aebutius Restituti/anus qui et Proficen/tius antistes dei / Solis invicti Mithrae/ aram / d(onum) d(edit)
Aebutius Restitutianus, also Proficientius, high priest of the god of the invincible sun, gave the altar as a gift to Mithras
This marble slab bears an inception be the Pater Proficentius to whom Mithras has suggested to build and devote a temple.
Hic locus est felix, sanctus, piusque benignus,
Quem monuit Mithras mentemque dedit
Proficentio patri sacrorum
Utque sibi spelaeum faceret dedicaretque
Et celeri instansque operi reddit munera grata
Quem bono auspicio suscepit anxia mente
Ut possint syndexi hilares celebrare vota per aevom
Hos versiculos generavit Proficentius
Pater diguissimus Mithrae.
It is here a happy, pure and pious, beneficent place that Mithras indicated to Proficentius, Father of the rites (pater sacrorum), so that he could build a crypt (spelaeum) and dedicate it to him. And it is with celerity, without respite, that he accomplishes these precious missions undertaken under good auspices, so that the syndexi can, with joy, celebrate their vows, eternally.
These little verses were composed by Proficentius, a very worthy father of Mithras.