of Publius Aelius Nigrinus
- Publius Aelius Nigrinus was a brother of the Mithraeum I of Carnuntum.
- Active c. 2nd – 3rd century in Carnuntum, Pannonia superior (Pannonia).
The small altar found in Carnuntum, which became the capital of Pannonia Superior in the 1st century, tells us that Aelius Nigrinus was a priest of Mithras. He chose to dedicate his monument to Petra Genetrix to fulfil his vow.
Aelius Nigrinus dedicated this small altar in Carnuntum to the rock from which Mithras was born.