Gallienus

Publius Licinius Egnatius Gallienus (, ; – September 268) was Roman emperor with his father Valerian from 253 to 260 and alone from 260 to 268. He ruled during the Crisis of the Third Century that nearly caused the collapse of the empire. He won numerous military victories against usurpers and Germanic tribes, but was unable to prevent the secession of important provinces. His 15-year reign was the longest in half a century.

battle between the Goths and the Romans under Emperor Gallienus (268/269)

battle during the Roman-Germanic wars (259)

archway at Porta Esquilina, Rome