Julio - Claudian Dynasty
|
16 BC - 14
|
40 years, 7 months, and 3 days
|
Augustus
|
14 - 37
|
22 years, 5 months, and 27 days
|
Tiberius
|
37 - 41
|
3 years, 10 months, 6 days
|
Caligula
|
41 - 54
|
13 years, 8 months, 18/19 days
|
Claudius
|
54 - 68
|
13 years, 7 months, and 27 days
|
Nero
|
|
|
|
Year of the Four Emperors and the Flavian Dynasty
|
68 - 69
|
7 months and 7 days
|
Galba
|
69
|
3 months and 1 day
|
Otho
|
69
|
8 months and 3 days
|
Vitellius
|
69 - 79
|
9 years, 6 months, and 3 days
|
Vespasian
|
79 - 81
|
2 years, 2 months, and 20 days
|
Titus
|
81 - 96
|
15 years and 4 days
|
Domitian
|
|
|
|
Nerva - Antonine Dynasty
|
96 - 98
|
1 year, 4 months, and 9 days
|
Nerva
|
98 - 117
|
19 years, 6 months, and 10 days
|
Trajan
|
117 - 138
|
20 years, 10 months, and 30 days
|
Hadrian
|
138 - 161
|
22 years, 6 months and 28 days
|
Antoninus Pius
|
161 - 169
|
8 years
|
Lucius Verus
|
161 - 180
|
19 years and 10 days
|
Marcus Aurelius
|
(177) 180 - 192
|
12 years, 9 months, and 14 days
|
Commodus
|
|
|
|
Year of the Five Emperors and the Severan Dynasty
|
193
|
2 months and 27 days
|
Pertinax
|
193
|
2 months and 4 days
|
Didius Julianus
|
193 - 211
|
17 years, 9 months, and 26 days
|
Septimius Severus
|
(198) 211 - 217
|
6 years, 2 months, 4 days
|
Caracalla
|
(209) 211
|
10 months, 24 days
|
Geta
|
217 - 218
|
1 year, 1 month, and 28 days
|
Macrinus
|
218
|
1 month
|
Diadumenian
|
218 - 222
|
3 years, 9 months, and 3 days
|
Elagabalus
|
222 - 235
|
13 years and 5 days
|
Severus Alexander
|
|
|
|
Crisis of the Third Century
|
235 - 238
|
3 years and 3 months
|
Maximinus Thrax
|
238
|
21 days
|
Gordian I
|
238
|
21 days
|
Gordian II
|
238
|
3 months and 7 days
|
Pupienus
|
238
|
3 months and 7 days
|
Balbinus
|
238 - 244
|
5 years, 9 months and 20 days
|
Gordian III
|
244 - 249
|
5 years and 6 months
|
Philip the Arab
|
249 - 251
|
2 years
|
Philip II
|
251
|
1 year and 9 months
|
Decius
|
251
|
1 month
|
Herennius Etruscus
|
251
|
4 - 5 months
|
Hostilian
|
251 - 253
|
2 years and 2 months
|
Trebonianus Gallus
|
251 - 253
|
1 year and 9 months
|
Volusianus
|
253
|
2 months
|
Aemilian
|
253 - 260
|
7 years
|
Valerian
|
253 - 268
|
15 years
|
Gallienus
|
260
|
1 month(?)
|
Saloninus
|
268 - 270
|
1 year and 4 months
|
Claudius Gothicus
|
270
|
9 months(?)
|
Quintillus
|
270 - 275
|
5 years
|
Aurelian
|
275
|
Briefly
|
Ulpia Severina
|
275 - 276
|
9 months
|
Tacitus
|
276
|
3 months
|
Florianus
|
276 - 282
|
6 years
|
Probus
|
282 - 283
|
10-11 months
|
Carus
|
283 - 284
|
2 years
|
Numerian
|
283 - 285
|
1 years
|
Carinus
|
|
Tetrarchy and Constantinian Dynasty
|
284 - 305
|
20 years, 5 months, and 11 days
|
Diocletian
|
286 - 305
|
19 years and 1 month
|
Maximian
|
(293) 305 - 311
|
6 years
|
Galerius
|
(293) 305 - 306
|
1 year, 2 months and 24 days
|
Constantius Chlorus
|
(305) 306 - 307
|
1 year
|
Valerius Severus
|
(306) 307 - 337
|
30 years, 9 months, and 27 days
|
Constantine the Great
|
306 - 312
|
6 years
|
Maxentius
|
308 - 324
|
15 years, 10 months, and 7 days
|
Licinius
|
317
|
5 months(?)
|
Valerius Valens
|
324
|
2 months
|
Martinian
|
(305) 311 - 313
|
2 years
|
Maximinus Daia
|
(317) 337 - 340
|
3 years
|
Constantine II
|
337 - 361
|
24 years, 5 months, and 12 days
|
Constantius II
|
337 - 350
|
13 years
|
Constans
|
350
|
9 months and 24 days
|
Vetranio
|
360 - 363
|
3 years
|
Julian
|
363 - 364
|
7 months and 22 days
|
Jovian
|
|
|
|
Valentinian Dynasty
|
364 - 375
|
11 years, 8 months and 22 days
|
Valentinian
|
364 - 378
|
14 years, 4 months, and 12 days
|
Valens
|
367 - 383
|
16 years and 21 days
|
Gratian
|
375 - 392
|
16 years, 5 months, and 28 days
|
Valentinian II
|
383/384 - 388
|
4/5 years
|
Magnus Maximus
|
383/384 - 388
|
4/5 years
|
Victor
|
392 - 394
|
2 years and 15 days
|
Eugenius
|
|
|
|
Western Empire - Theodosian Dynasty
|
379 - 395
|
15 years, 11 months, and 29 days
|
Theodosius I
|
(393) 395 - 423
|
28 years, 6 months, and 29 days
|
Honorius
|
(407) 409 - 411
|
2 years
|
Constantine III
|
(407) 409 - 411
|
2 years
|
Constans
|
421
|
6 months and 25 days
|
Constantius III
|
423 - 425
|
2 years
|
Joanes
|
424 - 455
|
30 years, 4 months, and 21 days
|
Valentinian III
|
|
|
|
Last Emperors of the Western Empire
|
455
|
2 months and 14 days
|
Petronius Maximus
|
455 - 456
|
1 year, 3 months, and 8 days
|
Avitus
|
457 - 461
|
4 years
|
Majorian
|
462
|
4 years
|
Libius Severus
|
467 - 472
|
5 years, 2 months, and 29 days
|
Anthemius
|
472
|
3 months and 22 day
|
Olybrius
|
473 - 474
|
1 year
|
Glycerius
|
474 - 475
|
1 year / 6 years
|
Julius Nepos
|
475 - 476
|
10 months and 4 days
|
Romulus Augustulus
|
|
|
|
Eastern Empire - Theodosian Dynasty
|
379 - 395
|
15 years, 11 months, and 29 days
|
Theodosius I
|
(383) 395 - 408
|
13 years
|
Arcadius
|
402 - 450
|
48 years
|
Theodosius II
|
450 - 453
|
3 years
|
Pulcheria
|
450 - 457
|
7 years
|
Marcian
|
|
|
|
Eastern Empire - Leonid Dynasty
|
457 - 474
|
16 years, 11 months, and 11 days
|
Leo I
|
474
|
9 months and 23 days
|
Leo II
|
474 - 491
|
17 years
|
Zeno
|
475 - 476
|
1 year and 7 months
|
Basiliscus
|
475 - 476
|
~1 year
|
Marcus
|
491 - 518
|
27 years, 2 months, and 28 days
|
Anastasius I
|
|