Antoninianus - Tetricus II PIETAS AVGG

Tetricus II was elevated to Caesar by his father Tetricus I around 272, a co-rulership strategy common among the breakaway Gallic emperors but increasingly desperate by this point — the regime was under sustained pressure from Aurelian's reunification campaign. The PIETAS AVGG legend references both rulers, the plural "Augustorum" acknowledging the father-son partnership even though the younger Tetricus never held the title Augustus. When Aurelian finally crushed the Gallic Empire at the Battle of Châlons in 274, both Tetrici were paraded in the triumph but spared, with Tetricus I reportedly appointed governor of Lucania.