Lucius Septimius Severus: emperor of the Roman world (193-211).
Heliogabalus: emperor of Rome, ruled from 218 to 222
Gordian III: emperor of the Roman world (238-244).
Philippus Arabs: emperor of the Roman world (244-249).
Valerian: emperor of the Roman world (253-260).
Laelianus: emperor of the Gallic Empire  (spring 269).
Aurelian: emperor of the Roman world (270-275).
Probus: emperor of the Roman world (276-282).
Diocletian: emperor of the Roman world (284-305).
Constantius I Chlorus: emperor of the Roman world (305-306).
Constantius II: emperor of the Roman world (337-361).

Caligula