Valens was Roman emperor from 364 to 378. Following a largely unremarkable military career, he was named co-emperor by his elder brother Valentinian I, who gave him the eastern half of the Roman Empire to rule. In 378, Valens was defeated and killed at the Battle of Adrianople against the invading Goths, which astonished contemporaries and marked the beginning of barbarian encroachment into Roman territory.
The 430s decade ran from January 1, 430, to December 31, 439.
The 420s decade ran from January 1, 420, to December 31, 429.
Year 392 (CCCXCII) was a leap year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Rufinus. The denomination 392 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.
The 360s decade ran from January 1, 360, to December 31, 369.
The 370s decade ran from January 1, 370, to December 31, 379.
Year 388 (CCCLXXXVIII) was a leap year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus without colleague. The denomination 388 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.
Year 375 (CCCLXXV) was a common year starting on Thursday of the Julian calendar. At the time, it was known in Rome as the Year after the Consulship of Augustus and Equitius. The denomination 375 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.
Valentinian III was Roman emperor in the West from 425 to 455. Starting in childhood, his reign over the Roman Empire was one of the longest, but was dominated by civil wars among powerful generals and the invasions of late antiquity's Migration Period.
Gratian was emperor of the Western Roman Empire from 367 to 383. The eldest son of Valentinian I, Gratian was raised to the rank of Augustus as a child and inherited the West after his father's death in 375. He nominally shared the government with his infant half-brother Valentinian II, who was also acclaimed emperor in Pannonia on Valentinian's death. The East was ruled by his uncle Valens, who was later succeeded by Theodosius I.
Valentinian I, sometimes called Valentinian the Great, was Roman emperor from 364 to 375. He ruled the Western half of the empire, while his brother Valens ruled the East. During his reign, he fought successfully against the Alamanni, Quadi, and Sarmatians, strengthening the border fortifications and conducting campaigns across the Rhine and Danube. His general Theodosius defeated a revolt in Africa and the Great Conspiracy, a coordinated assault on Roman Britain by Picts, Scoti, and Saxons. Valentinian founded the Valentinianic dynasty, with his sons Gratian and Valentinian II succeeding him in the western half of the empire.
Jovian was Roman emperor from June 363 to February 364. As part of the imperial bodyguard, he accompanied Julian on his campaign against the Sasanian Empire. Julian was killed in battle, and the exhausted and ill-provisioned army declared Jovian his successor. Unable to cross the Tigris, Jovian made peace with the Sasanids on humiliating terms. He spent the rest of his seven-month reign traveling back to Constantinople. After his arrival at Edessa, Jovian was petitioned by bishops over doctrinal issues concerning Christianity. Albeit the last emperor to rule the whole Empire during his entire reign, he died at Dadastana, never having reached the capital.
Count Theodosius, Flavius Theodosius or Theodosius the Elder, was a senior military officer serving Valentinian I and the Western Roman Empire during Late Antiquity. Under his command the Roman army defeated numerous threats, incursions, and usurpations. Theodosius was patriarch of the imperial Theodosian dynasty and father of the emperor Theodosius the Great.
In modern historiography, the Western Roman Empire was the western provinces of the Roman Empire, collectively, during any period in which they were administered separately from the eastern provinces by a separate, independent imperial court. Particularly during the period from AD 395 to 476, there were separate, coequal courts dividing the governance of the empire into the Western provinces and the Eastern provinces with a distinct imperial succession in the separate courts. The terms Western Roman Empire and Eastern Roman Empire were coined in modern times to describe political entities that were de facto independent; contemporary Romans did not consider the Empire to have been split into two empires but viewed it as a single polity governed by two imperial courts for administrative expediency. The Western Empire collapsed in 476, and the Western imperial court in Ravenna disappeared by AD 554, at the end of Justinian's Gothic War.
The Theodosian dynasty was a Roman imperial family that produced five Roman emperors during Late Antiquity, reigning over the Roman Empire from 379 to 457. The dynasty's patriarch was Theodosius the Elder, whose son Theodosius the Great was made Roman emperor in 379. Theodosius's two sons both became emperors, while his daughter married Constantius III, producing a daughter that became an empress and a son also became emperor. The dynasty of Theodosius married into, and reigned concurrently with, the ruling Valentinianic dynasty, and was succeeded by the Leonid dynasty with the accession of Leo the Great.
The Valentinian dynasty was a ruling house of five generations of dynasts, including five Roman emperors during late antiquity, lasting nearly a hundred years from the mid fourth to the mid fifth century. They succeeded the Constantinian dynasty and reigned over the Roman Empire from 364 to 392 and from 425 to 455, with an interregnum (392–423), during which the Theodosian dynasty ruled and eventually succeeded them. The Theodosians, who intermarried into the Valentinian house, ruled concurrently in the east after 379.
The history of the Roman Empire covers the history of ancient Rome from the traditional end of the Roman Republic in 27 BC until the abdication of Romulus Augustulus in AD 476 in the West, and the Fall of Constantinople in the East in 1453. Ancient Rome became a territorial empire while still a republic, but was then ruled by emperors beginning with Octavian Augustus, the final victor of the republican civil wars.
Dagalaifus was a Roman army officer of Germanic descent. A pagan, he served as consul in 366. In the year 361, he was appointed by Emperor Julian as comes domesticorum. He accompanied Julian on his march through Illyricum to quell what remained of the government of Constantius II that year. He led a party into Sirmium that arrested the commander of the resisting army, Lucillianus. In the spring of 363, Dagalaifus was part of Julian's ultimately-disastrous invasion of Persia. On June 26, while still campaigning, Julian was killed in a skirmish. Dagalaifus, who had been with the rear guard, played an important role in the election of the next emperor. The council of military officers finally agreed on the new comes domesticorum, Jovian, to succeed Julian. Jovian was a Christian whose father Varronianus had himself once served as comes domesticorum.
Flavius Lupicinus was a Roman military commander in the 4th century AD. He was appointed magister equitum in 357, but fell out of favour when he refused to side with Julian when the army declared him Augustus. After Julian's death, he was appointed magister equitum per orientes in 363. In 365, he was the senior commander in the emperor Valens' campaign against the usurper Procopius, and following the defeat of Procopius was made consul in 367.
