This is a list of the Roman emperors:

Many of them were murdered by relatives, enemies, friends, and soldiers.

  • Julio–Claudian dynasty
  1. Augustus
  2. Tiberius, Augustus's son-in-law.
  3. Caligula, Tiberius's grand-nephew, murdered by his bodyguards for many crimes.
  4. Claudius, Caligula's uncle. Claudius conquered Britain, making it part of the Roman Empire.
  5. Nero, Claudius's grand-nephew. Accused Christians of burning down Rome. First Roman Emperor to commit suicide.
  1. Galba, military leader under Claudius.
  2. Otho, friend of Nero.
  3. Vitellius, military leader under Galba. Vitellius banned astrologers from Rome.
  • Flavian dynasty
  1. Vespasian, military leader under Claudius. Vespasian began the building of the Colosseum.
  2. Titus, Vespasian's son. Titus finished building the Colosseum.
  3. Domitian, Titus's younger brother. Domitian conquered southern Scotland, making it (temporarily) part of the Roman Empire.
  1. Nerva, friend of Nero, who had saved Nero's life.
  2. Trajan. Under Trajan, the Roman Empire was at its largest size ever.
  3. Hadrian - Hadrian built Hadrian's Wall in Britain, to prevent the Picts from invading Roman Britain. Hadrian died in 138 AD. From 138 AD until 284 AD, there were 32 more emperors.
  4. Antoninus Pius
  5. Lucius Verus
  6. Marcus Aurelius
  7. Commodus
  1. Pertinax
  2. Didius Julianus
  3. Severus
  4. Caracalla
  5. Geta
  6. Macrinus
  7. Diadumenian
  8. Elagabalus
  9. Severus Alexander
  1. Maximinus I
  2. Gordian I
  3. Gordian II
  4. Pupienus
  5. Balbinus
  6. Gordian III
  7. Philip I
  8. Trajan Decius
  9. Hostilian
  10. Trebonianus Gallus
  11. Aemilianus
  12. Valerian
  13. Gallienus
  14. Claudius II Gothicus
  15. Quintillus
  16. Aurelian
  17. Marcus Claudius Tacitus
  18. Florian
  19. Probus
  20. Carus
  21. Numerian
  22. Carinus
  • The Dominate: Tetrarchy and Constantinian dynasty
  1. Diocletian in 284 AD, created the tetrarchy, abdicated.
  2. Maximian
  3. Galerius
  4. Constantius Chlorus
  5. Valerius Severus
  6. Constantine in 306 AD. Founded the city of Constantinople at Byzantium. Converted to Christianity.
  7. Maxentius
  8. Licinius
  9. Maximinus II
  10. Constantine II, son of Constantine
  11. Constantius II, son of Constantine
  12. Constans I, son of Constantine
  13. Vetranio
  14. Julian
  15. Jovian
  • Valentinianic dynasty
  1. Valentinian I
  2. Valens
  3. Gratian
  4. Valentinian II
  5. Magnus Maximus
  • Theodosian dynasty
  1. Theodosius I in 395 AD. He split the Roman Empire into two parts. The western part lasted until 476 AD, when it became ruled by the Germanic people. The eastern part lasted until 1453, when it became part of the Ottoman/Turkish Empire.

Note there were also numerous usurpers ("fake" emperors) including: