The Macriani Faction is a powerful family with an ambitious son, Macriani Junius. They are allied with the treacherous governor of Egypt, Aimidius, and with Prefect Emilianus of Alexandria. They represent an alternative center of power that challenges the central imperial authority of Gallienus. The archive refers to the historical Macriani of the period of the Thirty Tyrants (about 260 A.D.).