Augustus 27 B.C. - A.D. 14 (Julio-Claudian)
Tiberius A.D.14 - A.D. 37 (Julio-Claudian)
Caligua A.D. 37 - A.D. 41 (Julio-Claudian)
Claudius A.D. 41 - A.D. 54 (Julio-Claudian)
Nero A.D. 54 - A.D. 68 (Julio-Claudian)
Galba A.D. 68 - A.D. 69
Otho 1/69 - 4/69
Vitellius 4/69 - 12/69
Vespasian A.D. 69 - A.D. 79 (Flavian)
Titus A.D. 79 - A.D. 81 (Flavian)
Domitian A.D. 81 - A.D. 96 (Flavian)
Nerva A.D. 96 - A.D. 98
Trajan A.D. 98 - 117
Hadrian 117 - 138
Antoninus Pius 138 - 161
Marcus Aurelius 161 - 180
Lucius Verus 161 - 169 (co-Emperor with Marcus Aurelius)
Commodus 177 - 192
Pertinax 1/193 - 3/193 (Severan)
Didius Julianus 3/193 - 6/193 (Severan)
Septimius Severus 193 - 211 (Severan)
Caracalla 198 - 217 (Severan)
Geta 209 - 211 (Severan)
Macrinus 217 - 218 (Severan)
Diadumenian 217 - 218 (Severan)
Elagabalus 218 - 222 (Severan)
Alexander Severus 222 - 235 (Severan)
Maximinus Thrax 235 - 238
Gordian I and Gordian II 1/238 - 4/238
Pupienus Maximus 2/238 - 5/238
Balbinus 2/238 - 5/238
Gordian III 238 - 244
Philip the Arab 244 - 249
Decius 249 - 251
Herennius Etruscus 251
Hostilian 251
Gallus, Vulusianus 251 - 253
Aemilian 8/253 - 12/253
Valerian 253 - 260
Gallienus 253 - 268
Saloninus 260
Postumus 260 - 269
Marius 269
Victorinus 269 - 271
Tetricus I 271 - 274
Claudius II Gothicus 268 - 270
Aurelian 270 - 275
Tacitus 275 - 276
Florianus 276
Probus 276 - 282
Carus 282 - 283
Carinus 283 - 285
Numerian 283 - 284
Diocletian 284 - 305
Maximian 286 - 305
Constantius I 305 - 306
Galerius 305 - 311
Severus II 306 - 307
Maxentius 306 - 312
Maximian 307 - 308
Constantine I The Great 307 - 337
