Between the 1st and 4th centuries, Mithraism developed throughout the Roman world. Much material exists, but textual evidence is scarce. The only ancient work that fills this gap is Porphyry’s intense and complex essay.
In this relief of Mithras as bull slayer, recorded in 1562 in the collection of A. Magarozzi, Cautes and Cautopates have been replaced by trees still bearing the torches.
Isca, variously specified as Isca Augusta or Isca Silurum, was the site of a Roman legionary fortress and settlement or vicus, the remains of which lie beneath parts of the present-day suburban town of Caerleon, Walles.
The Mithraic vase from Colonia Claudia Ara Agrippinensium in Germany includes Sol-Mithras between Cautes and Cautopates, as well as a serpent, a lion and seven stars.