Praetorian prefect in the context of "Roman diocese"

Philip I (Latin: Marcus Julius Philippus; c. 204 – September 249), commonly known as Philip the Arab, was Roman emperor from 244 to 249. After the death of Gordian III in February 244, Philip, who had been Praetorian prefect, rose to power. He quickly negotiated peace with the Sasanian Empire and returned to Rome to be confirmed by the Senate. According to many historians, he was possibly the first Christian Roman Emperor.

Although his reign lasted only five years, it marked an unusually stable period in a century that is otherwise known for having been turbulent. Near the end of his rule, Philip commemorated Rome's first millennium. In September 249 he was killed during or shortly after the Battle of Verona against the usurper Trajan Decius, who was subsequently recognized by the Senate as his successor.

Nero Claudius Caesar Augustus Germanicus (/ˈnɪəroʊ/ NEER-oh; born Lucius Domitius Ahenobarbus; 15 December AD 37 – 9 June AD 68) was a Roman emperor and the final emperor of the Julio-Claudian dynasty, reigning from AD 54 until his death in AD 68.

Nero was born at Antium in AD 37, the son of Gnaeus Domitius Ahenobarbus and Agrippina the Younger (great-granddaughter of the emperor Augustus). Nero was three when his father died. By the time Nero turned eleven, his mother married Emperor Claudius, who then adopted Nero as his heir. Upon Claudius' death in AD 54, Nero ascended to the throne with the backing of the Praetorian Guard and the Senate. In the early years of his reign, Nero was advised and guided by his mother Agrippina, his tutor Seneca the Younger, and his praetorian prefect Sextus Afranius Burrus, but sought to rule independently and rid himself of restraining influences. The power struggle between Nero and his mother reached its climax when he orchestrated her murder. Roman sources also implicate Nero in the deaths of both his wife Claudia Octavia – supposedly so he could marry Poppaea Sabina – and his stepbrother Britannicus.

Marcus Opellius Macrinus (/məˈkrɪnəs/; c. 165 – June 218) was a Roman emperor who reigned from April 217 to June 218, jointly with his young son Diadumenianus. Born in Caesarea (now called Cherchell, in modern Algeria), in the Roman province of Mauretania Caesariensis to an equestrian family of Berber origins, he became the first emperor who did not hail from the senatorial class and also the first emperor who never visited Rome during his reign. Before becoming emperor, Macrinus served under Emperor Caracalla as a praetorian prefect and dealt with Rome's civil affairs. He later conspired against Caracalla and had him murdered in a bid to protect his own life and succeeded Caracalla as emperor.

Macrinus was proclaimed emperor of Rome by 11 April 217 while in the eastern provinces of the empire and was subsequently confirmed as such by the Senate; however, for the duration of his reign, he never had the opportunity to return to Rome. His predecessor's policies had left Rome's coffers empty and the empire at war with several kingdoms, including Parthia, Armenia, and Dacia. As emperor, Macrinus first attempted to enact reform to restore economic and diplomatic stability in Rome. While Macrinus' diplomatic actions brought about peace with each of the individual kingdoms, the additional monetary costs and subsequent fiscal reforms generated unrest in the Roman military.

Numerian (Latin: Marcus Aurelius Numerius Numerianus; died November 284) was Roman emperor from 283 to 284 with his older brother Carinus. They were sons of Carus, a general raised to the office of praetorian prefect under Emperor Probus in 282.

Byzantine rule in North Africa spanned around 175 years. It began in the years 533/534 with the reconquest of territory formerly belonging to the Western Roman Empire by the Eastern Roman (Byzantine) Empire under Justinian I and ended during the reign of Justinian II with the conquest of Carthage (698) and the last Byzantine outposts, especially Septem (708/711), in the course of Islamic expansion.

The region's administrative structure was initially in line with the typical late Roman administrative structures that had been existing for the past 300 years. Civil powers were thus in the hands of a Praetorian prefect, the head of the supreme civil administrative authority in the Late Roman Empire. The military powers, however, were incumbent on a Magister militum per Africam. These powers were merged into single office from 591 at the latest, and East Roman North Africa became the heartland of one of two exarchates, with the founding of which the East Roman Emperor Maurice (582–602) was able to counteract the consequences of imperial overstretch through bundling and decentralization. No further change in these administrative structures took place until the end of Byzantine rule.

De vita Caesarum (Latin; lit. "On the Life of the Caesars"), commonly known as The Twelve Caesars or The Lives of the Twelve Caesars, is a set of twelve biographies of Julius Caesar and the first 11 emperors of the Roman Empire during the Principate. The subjects are Julius Caesar, Augustus, Tiberius, Caligula, Claudius, Nero, Galba, Otho, Vitellius, Vespasian, Titus, Domitian.

The Twelve Caesars was written in 121 CE by Gaius Suetonius Tranquillus (called "Suetonius" by scholars) while he served as a personal secretary to the emperor Hadrian. Suetonius dedicated the work to his friend, Gaius Septicius Clarus, a praetorian prefect.

The Diocese of Hispania was a late antique administrative unit (Dioecesis) of the Roman Empire on the Iberian Peninsula. It existed from 298 to about 461 AD. Its capital was Augusta Emerita. The diocese was governed by a vicarius responsible to the praetorian prefect of Gaul.

Saoterus (Greek: Σαώτερος ὁ Νικομηδεύς; died 182) was a Bithynian Greek freedman from Nicomedia who served as the Roman Emperor Commodus's palace chamberlain (a cubiculo). His career is sketched by Herodian, Dio Cassius and the Historia Augusta. Commodus preferred to exercise his rule through palace officials and Saoterus was the first of these; Saoterus was seen as in the Emperor's favour at the outset of his reign, as he accompanied Commodus in his chariot when he made his ceremonial entry into Rome on 22 October 180. Commodus placed him in a high position in his government, resulting in resentment from noble senatorial families. The Historia Augusta, apparently drawing on the testimony of Marius Maximus, insinuates that Commodus had a homosexual infatuation with Saoterus. After the attempt on Commodus's life in 182, Saoterus was implicated in the plot by the praetorian prefect Tigidius Perennis, and was murdered by the freedman Cleander, who succeeded him as chamberlain.