Year of the Six Emperors (238)
Reign of Gordian III (238–244)
Reign of Philip the Arab (244–249)
Reign of Decius (249–251)
Reign of Trebonianus Gallus (251–253)
Reign of Aemilianus (253)
Reign of Valerian and Gallienus (253–260)
Reign of Gallienus (260–268)
Reign of Claudius Gothicus (268–270)
Reign of Aurelian (270–275)
Reign of Tacitus (275-276)
Reign of Probus (276-282)
Reign of Carus (282-283)
Reign of Carinus (283-285)