Augustus 27 B.C.
Tiberius A.D. 14
Gaius 37
Claudius 41
Nero 54
Galba }
Otho } 68-69
Vitellius }
Vespasian 69
Titus 79
Domitian 81
Nerva 96
Trajan 98
Hadrian 117
Antoninus Pius 138
Marcus Aurelius 161
Commodus 180
Pertinax }
Didius Julianus } 193
Septimius Severus }
Caracalla 211
Macrinus 217
Elagabalus 218
Alexander Severus 222
Maximinus 235
The two Gordians }
Pupienus and Balbinus } 238
Gordian III }
Philip 244
Decius 249
Gallus 251
Aemilianus 253
Valerian }
Gallienus } 260
Claudius 268
Quintillus }
Aurelian } 270
Tacitus 275
Probus 276
Carus 282
Carinus and Numerian 283
Diocletian 284
(with Maximian) 286
Constantius and Galerius 305
Licinius and Constantine I 311
Constantine I 324
Constantine II }
Constantius II } 337
Constans }
Constantius II 350
Julian 361
Jovian 363