Which Roman emperor served the longest, in years?
Augustus
Titus
Tiberius
Tiberius
Titus
Septimius Severus
Tiberius
Tiberius
Septimius Severus
Titus
Nero
Marcus Aurelius
Tiberius
Nero
Septimius Severus
Titus
Tiberius
Marcus Aurelius
Nero
Tiberius
Marcus Aurelius
Maximinus Thrax
Septimius Severus
Titus
Nero
Tiberius
Marcus Aurelius
Domitian
Maximinus Thrax
Trajan
Nero
Septimius Severus
Claudius
Severus Alexander
Tiberius
Marcus Aurelius
Domitian
Octavian
Trajan
Maximinus Thrax
Titus
Nero
Caligula
Tiberius
Domitian
Trajan
Marcus Aurelius
Octavian
Lucius Tarquinius Priscus
Severus
Maximinus Thrax
Septimius Severus
Nero
Vespasian
Titus Octavius
Severus Alexander
Titus Livius
Claudius
Titus
Tiberius
Trajan
Domitian
Marcus Aurelius
Octavian
Augustus
Titus Octavian
Maximinus Thrax
Nero
Titus, Tiberius
Vespasian
Septimius Severus
Tiberius
Trajan
Domitian
Caligula
Augustus
Marcus Aurelius
Octavian
Severus
Titus
Nero
Maximinus Thrax
Severus Alexander
Vespasian
Titus Livius
Titus, Trajan
Severus Augustus
Trajan
Titus Octavius
Tiberius
Domitian
Octavian Augustus
Augustus
Marcus Aurelius
Octavian
Titus Octavian
Nero
Titus Aelius
Vespasian
Maximinus Thrax
Titus the Great
Caligula
Trajan
Septimius Severus
Antoninus Pius
Tiberius
Augustus
Domitian
Claudius
Titus
Emperor Trajan
Severus
Marcus Aurelius
Octavian
Tiberius & Trajan
Nero
Severus Augustus
Titus Livius
Trajan
Vespasian
Maximinus Thrax
Titus Octavius
Tiberius
Hadrian
Augustus
Titus, Trajan
Maximinus Daia
Lucius Verus
Emperor Trajan
Octavian Augustus
Septimius Severus
Severus Alexander
Trajan, Trajan
Septimius Severus.
Titus Octavian
Domitian
Trajan
Marcus Aurelius
Octavian
Titus
Nero
Caligula
Vespasian
Antoninus Pius
Claudius
Hadrian
Tiberius & Trajan
Augustus
Tiberius
Octavius Augustus
Lucius Tarquinius Superbus
Caligula, Trajan
Emperor Trajan
Titus Aelius
Maximinus Daia
Titus Livius
Trajan
Trajan, Trajan
Nero
Marcus Aurelius
Septimius Severus
Caligula and Trajan
Hadrian
Augustus
Domitian
Lucius Verus
Tiberius
Octavianus
Septimius Severus.
Octavius
Tiberius, Tiberius
Octavian Augustus
Tiberius & Trajan
Emperor Trajan
Emperor Trajan of the Roman Empire
Trajan
Titus, Trajan
Severus
Maximinus Daia
Titus
Trajan, Trajan
Nero
Caligula, Augustus
Hadrian
Augustus
Tiberius
Caligula, Hadrian
Titus the Great
Severus Alexander
Antoninus Pius
Octavian I
Titus Livius
Octavianus
Caligula of Rome
Octavius
Octavius Augustus
Domitian
Trajan
Nerva
Emperor Trajan
Severus Augustus