The Roman Empire was the post-Republican state of ancient Rome and is generally understood to mean the period and territory ruled by the Romans following Octavian's assumption of sole rule under the Principate in 31 BC. It included territory in Europe, North Africa, and Western Asia, and was ruled by emperors. The fall of the Western Roman Empire in 476 conventionally marks the end of classical antiquity and the beginning of the Middle Ages.
Year 457 (CDLVII) was a common year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Constantinus and Rufus. The denomination 457 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Glycerius was Roman emperor of the West from 473 to 474. He served as comes domesticorum during the reign of Olybrius, until Olybrius died in November 472. After a four-month interregnum, Glycerius was proclaimed as emperor in March 473 by Gundobad, the magister militum and power behind the throne. Very few of the events of his reign are known other than that an attempted invasion of Italy by the Visigoths was repelled by local commanders, diverting them to Gaul. Glycerius also prevented an invasion by the Ostrogoths through diplomacy, including a gift of 2,000 solidi.
Marcian was Roman emperor of the East from 450 to 457. Very little of his life before becoming emperor is known, other than that he was a domesticus who served under the commanders Ardabur and his son Aspar for fifteen years. After the death of Emperor Theodosius II on 28 July 450, Marcian was made a candidate for the throne by Aspar, who held much influence because of his military power. After a month of negotiations Pulcheria, Theodosius' sister, agreed to marry Marcian. Zeno, a military leader whose influence was similar to Aspar's, may have been involved in these negotiations, as he was given the high-ranking court title of patrician upon Marcian's accession. Marcian was elected and inaugurated on 25 August 450.
Leo I, also known as "the Thracian", was Roman emperor of the East from 457 to 474. He was a native of Dacia Aureliana near historic Thrace. He is sometimes surnamed with the epithet "the Great", probably to distinguish him from his young grandson and co-augustus Leo II.
Procopius Anthemius was the Western Roman emperor from 467 to 472. Born in the Eastern Roman Empire, Anthemius quickly worked his way up the ranks. He married into the Theodosian dynasty through Marcia Euphemia, daughter of Eastern emperor Marcian. He soon received a significant number of promotions to various posts, and was presumed to be Marcian's planned successor. However, Marcian's sudden death in 457, together with that of Western emperor Avitus, left the imperial succession in the hands of Aspar, who instead appointed a low-ranking officer known as Leo to the Eastern throne out of fear that Anthemius would be too independent. Eventually, this same Leo would designate Anthemius as Western emperor in 467, following a two-year interregnum that started in 465.
Eparchius Avitus was Roman emperor of the West from July 455 to October 456. He was a senator of Gallic extraction and a high-ranking officer both in the civil and military administration, as well as Bishop of Piacenza.
Quintus Petillius Cerialis Caesius Rufus, otherwise known as Quintus Petillius Cerialis, was a Roman general and administrator who served in Britain during Boudica's rebellion and went on to participate in the civil wars after the death of Nero. He later crushed the rebellion of Julius Civilis and returned to Britain as its governor.
Quintus Curtius Rufus was a Roman historian, probably of the 1st century, author of his only known and only surviving work, Historiae Alexandri Magni, "Histories of Alexander the Great", or more fully Historiarum Alexandri Magni Macedonis Libri Qui Supersunt, "All the Books That Survive of the Histories of Alexander the Great of Macedon." Much of it is missing. Apart from his name on the manuscripts, nothing else certain is known of him. This fact alone has led philologists to believe that he had another historical identity, to which, due to the accidents of time, the link has been broken. A few theories exist. They are treated with varying degrees of credibility by various authors. Meanwhile, the identity of Quintus Curtius Rufus, historian, is maintained separately.
Marcus was a Roman usurper who was proclaimed Emperor of Roman Britain. He was killed later that same year in a subsequent mutiny.
The Illyriciani or Illyrian emperors were a group of Roman emperors during the Crisis of the Third Century who hailed from the region of Illyricum, and were raised chiefly from the ranks of the Roman army.
The Leonid dynasty produced six Roman emperors during Late Antiquity, reigning over the Roman Empire from 457 to 518. The dynasty's patriarch was Leo I, who was made Roman emperor in 457. Leo's daughter Ariadne became empress and mother to an emperor, and her two husbands were themselves each made emperor in turn. Another relative whose name does not survive of Leo I or his wife Verina married the future augustus Julius Nepos, the last emperor in the western Roman Empire. The dynasty of Leo succeeded the preceding Valentinianic dynasty and Theodosian dynasty whose family trees were conjoined and ruled concurrently. Besides Julius Nepos, who administered no more than a rump state the Roman province of Dalmatia in the western empire during the fall of the west, the dynasty's emperors governed the eastern empire.
Rufus is one of the most common of the ancient Roman cognomina.
The praetorian prefecture of Italy was one of four praetorian prefectures into which the Late Roman Empire was divided. It comprised the Italian peninsula, the Western Balkans, the Danubian provinces and parts of North Africa. The Prefecture's seat moved from Rome to Milan and finally, Ravenna.
Marcia Euphemia was the wife of Anthemius, Western Roman Emperor.
Flavius Zeno was an influential general and politician of the Eastern Roman Empire, of Isaurian origin, who served as magister militum per Orientem, and became consul and patricius.
Flavius Constantinus was a politician of the Eastern Roman Empire, consul and three times praetorian prefect of the East.
Praenetus or Prainetos, also known as Prinetos or Prinetus (Πρίνετος) was a town of ancient Bithynia on the coast of the Propontis. It on the north side of Mount Arganthonius, and at the southern entrance of the Sinus Astacenus. It was situated 28 Roman miles to the northwest of Nicaea. Stephanus of Byzantium calls it Pronectus or Pronektos (Πρόνεκτος) and states that it was founded by the Phoenicians. If this be true, it would be a very ancient place, which can scarcely be conceived, as it is mentioned only by very late writers. According to Cedrenus it was destroyed by an earthquake. It was a bishopric; no longer the seat of a residential bishop, it remains a titular see of the Roman Catholic Church.
The 1257 imperial election was a double election in which the prince-electors of the Holy Roman Empire split into factions and elected two rivals, earl Richard of Cornwall and King Alfonso X of Castile, each claiming to have been legally elected.
Chelchal was a Hun commander serving as lieutenant general under the Byzantine Empire.