- Galerios was a brother. He was a(n) Assistant stonecutter.
- Active early 3rd century in Nicopolis ad Istrum, Dacia Malvensis (Dacia).
As he mentions in the stele of Nicopolis ad Istrum, he was an assistant stonecutter, son of Proteos.
The Tauroctony of Nicopolis ad Istrum is unique as it is the only Mithraic stele befitting a Greek donor.