Possibly named after their city of origin rather than a former commander, they are recorded in Britain only on a military diploma naming men discharged from the unit during a ceremony performed at the Caerleon legionary fortress in South Wales; it is possible that the regiment were stationed somewhere in Wales or south-east Britain at the time. The regiment had been transferred to Noricum by 130 and was shortly thereafter increased to milliary size, remaining on station by the Danube until the end of Roman rule.
