Praetorian prefect
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Praetorian prefect (Latin Praefectus praetorio) was the constant title of a high ofice in the Roman state that changed fundamentally in nature.
Praetorian guards commander
The praetorian prefect was commander of the Praetorian Guard until Constantine abolished it in 314. Praetorian prefects continued to be appointed until the reign of Heraclius, but the office developed into head of the civil and judicial administration of the empire.
Under the empire the praetorians or imperial guards were commanded by one, two, or even three praefects (praefecti praetorio), who were chosen by the emperor from among the knights and held office at his pleasure. From the time of Alexander Severus the post was open to senators also, and if a knight was appointed he was at the same time raised to the senate. Down to the time of Constantine, who deprived the office of its military character, the prefecture of the guards was regularly held by tried soldiers, often by men who had fought their way up from the ranks. In course of time the command seems to have been enlarged so as to include all the troops in Italy except the corps commanded by the city praefect (cohortes urbanae).
The special position of the Praetorians made them become a power in their own right in the Roman state, and their prefect, praefectus praetorio, soon became one of the more powerful men in this society. The emperors tried to flatter and control the praetorians, but they staged many coup d'états and contributed to a rapid rate of turnover in the imperial succession. The praetorians thus came to destabilize the Roman state, contrary to their purpose. The praetorian prefect became a major administrative figure in the later empire.
List of known Guard Prefects
| Known Prefects of the Praetorian Guard 2 BC - AD 312 | |
|---|---|
| Name |
Emperor Served |
| Publius Aper |
Augustus |
| Quintus Ostoriius Scapula |
Augustus |
| Valerius Ligur |
Augustus |
| Lucius Strabo |
Augustus, Tiberius |
| Lucius Aelius Sejanus |
Tiberius |
| Quintus Sutorius Macro |
Tiberius, Caligula |
| M. Arrencinus Clemens |
Caligula |
| Rufrius Pollio |
Claudius |
| Cantonius Justus |
Claudius |
| Rufius Crispinus |
Claudius |
| Lusius Geta |
Claudius |
| Sextus Afranius Burrus |
Claudius, Nero |
| Faenius Rufus |
Nero |
| Gaius Ophonius Tigellinus |
Nero |
| Nymphidius Sabinus |
Nero |
| Cornelius Laco |
Galba |
| Plotius Firmus |
Otho |
| Licinius Proculus |
Otho |
| Publius Sabinus |
Vitellius |
| Junius Priscus |
Vitellius |
| Tiberius Julius Alexander |
Vespasian |
| Arrius Varus |
Vespasian |
| Arrecinus Clemens |
Vespasian |
| Titus Flavius Vespasianus |
Vespasian |
| Cornelius Fuscus |
Domitian |
| Casperius Aelianus |
Domitian |
| Norbanus | Domitian |
| Petronius Secundus | Domitian |
| Casperius Aelianus | Nerva |
| Suburanus | Trajan |
| Claudius Livianus | Trajan |
| S. Sulpicius Similis | Trajan |
| C. Septicius Clarus | Hadrian |
| Marcius Turbo | Hadrian |
| Gaius Maximus |
Hadrian, Antoninus Pius |
| Tattius Maximus |
Antoninus Pius |
| Fabius Cornelius |
Antoninus Pius |
| Furius Victorinus |
Antoninus Pius, Marcus Aurelius |
| Macrinus Vindex |
Marcus Aurelius |
| Bassaeus Rufus |
Marcus Aurelius |
| Tarutenius Paternus |
Marcus Aurelius, Commodus |
| Tigidius Perennis |
Commodus |
| Cleander |
Commodus |
| Lucius Julianus |
Commodus |
| Aemilius Laetus |
Commodus, Pertinax, Didius Julianus |
| Flavius Genialis |
Didius Julianus |
| Tullius Crispinus |
Didius Julianus |
| Veterius Macrinus |
Septimius Severus |
| G. Fulvius Plautianus |
Septimius Severus |
| Papinian |
Septimius Severus, Caracalla |
| Marcus Opellius Macrinus |
Caracalla |
| Ulpius Julianus |
Macrinus |
| Julianus Nestor |
Macrinus |
| Valerius Comazon Eutychchianus |
Elagabalus |
| Antiochianus |
Elagabalus |
| Ulpian |
Severus Alexander |
| Iulius Paulus |
Severus Alexander |
| P. Aelius Vitalianus |
Maximinus |
| Philip the Arab |
Gordian III |
| Gaius Julius Priscus |
Philip |
| Aurelius Heraclianus |
Gallienus |
| Florianus |
Tacitus |
| Carus |
Probus |
| Aper |
Carus, Carinus, Numerian |
| Aristobulus |
Numerian, Diocletian |
| Hannibalianus |
Diocletian |
| Constantius Chlorus |
Diocletian |
| Asclepiodotus |
Diocletian |
| Rufius Volusianus |
Maxentius |
| Publius Cornelius Anullinus |
Maxentius |
transformation to administrator
Further, the praetorian praefect acquired, in addition to his military functions, a criminal jurisdiction, which he exercised not as the delegate but as the representative of the emperor, and hence it was decreed by Constantine 331 that from the sentence of the praetorian praefect there should be no appeal. A similar jurisdiction in civil cases was acquired by him not later than the time of Severus. Hence a knowledge of law became a qualification for the post, which under Marcus Aurelius and Commodus, but especially from the time of Severus, was held by the first jurists of the age, (e.g. Papinian, Ulpian and Paullus), while the military qualification fell more and more into the background. Under Constantine the institution of the magistri militum deprived the praetorian prefecture altogether of its military character; but left it the highest civil office of the empire.