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Constantius II

Roman emperor (317-361)

26 dated entries naming Constantius II, drawn from 23 separate years between 317 CE and 383 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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4th century

  • 317August 7 – Constantius II, Roman emperor (d. 361)source
  • 324November 8 – Emperor Constantine declares his son, Flavius Julius Constantius, to the rank of caesar, designating Flavius as his successor. Flavius will ascend the throne as Constantine the Second in 337 AD.source
  • 337September 9 – Constantine II, Constantius II, and Constans succeed their father Constantine I as co-emperors. The Roman Empire is divided between the three Augusti.source
  • 338Emperor Constantius II intervenes against the Persians in Armenia.source
  • 339Emperor Constantius II hastens to his territory in the East, where a revived Persia under King Shapur II is attacking Mesopotamia. For the next 11 years, the two powers engage in a war of border skirmishing, with no real victor.source
  • 340Constantinople, capital of Emperor Constantius II, becomes the largest city in the world, taking the lead from Rome, capital of his brother Constans I.source
  • 340Constans is left sole ruler of the Western part of the Roman Empire, with his other brother, Constantius II, emperor of the Eastern portion.source
  • 343The Eastern Roman Emperor Constantius II campaigns in Adiabene, a vassal kingdom of Armenia (Persian Empire).source
  • 344The Eastern Roman Emperor Constantius II campaigns in eastern Mesopotamia, against the Sassanid Persians.source
  • 348Wulfila escapes religious persecution by the Gothic chieftain Athanaric, obtains permission from Constantius II to migrate with his flock of converts to Moesia, and settles near Nicopolis ad Istrum (Bulgaria).source
  • 350March 1 – Vetranio is asked by Constantina, sister of Constantius II, to proclaim himself Caesar. Constantius accepts the new emperor and sends him funds to raise an army.source
  • 351March 15 – Emperor Constantius II elevates his 25-year-old cousin Constantius Gallus to Caesar at Sirmium (Pannonia). He arranges a marriage with his sister Constantina, and puts him in charge of the Eastern portion of the Roman Empire.source
  • 352Emperor Constantius II invades northern Italy in pursuit of the usurper Magnus Magnentius, who withdraws with his army to Gaul. He declares an amnesty for Magnentius' soldiers, many of whom desert to him.source
  • 353Battle of Mons Seleucus: Emperor Constantius II defeats the usurper Magnentius, who commits suicide in Gaul in order to avoid capture. Constantius becomes sole emperor, and reunifies the Roman Empire.source
  • 354Emperor Constantius II recalls his Caesar (and cousin) Constantius Gallus to Constantinople after hearing unfavorable reports about him. Gallus, Caesar of the East, has suppressed revolts in Syria Palaestina and central Anatolia. Constantius strips him of his powers and later has him executed in Pola (Croatia).source
  • 355November 6 – In Mediolanum (Italy), Emperor Constantius II raises his cousin Julian the Apostate to the rank of Caesar. He takes command of the western provinces and marries Constantius' sister, Helena.source
  • 356February 19 – Emperor Constantius II issues a decree closing all pagan temples in the Roman Empire, and ordering the banishment once again of the anti-Arian patriarch of Alexandria, Athanasius. He tries to have him arrested during a vigil service, but Athanasius flees to the Nitrian desert in Upper Egypt.source
  • 357At about this date, the relics of St Andrew the Apostle are taken from Patras to Constantinople by order of the Emperor Constantius II, and deposited in the Church of the Holy Apostles.source
  • 357April 28 – Emperor Constantius II enters Rome for the first time to celebrate his victory over Magnentius. He address the Senate and the Roman people.source
  • 358Emperor Constantius II builds new forts to secure upper Mesopotamia. Persia's king Shapur II sends an emissary to Constantinople with gifts and a letter wrapped in white silk. He requests that Constantius return the lands of his ancestors from the Euphrates to the frontier of Macedonia. Constantius tactfully refuses to cede any territories.source
  • 359July – Emperor Constantius II convenes the Council of Rimini, to resolve the crisis over Arianism in the Church. Some 400 bishops of the Western portion of the Roman Empire attend, while the Eastern bishops simultaneously hold a meeting at Seleucia. Given Saint Jerome's comment that, "The whole world groaned in astonishment to find itself Arian", it appears to have failed. Pope Liberius rejects the new creed at Rimini.source
  • 360Emperor Constantius II and Julian exchange several letters, both hoping to avoid a civil war.source
  • 361July – Julian begins leading his troops eastwards against Constantius II.source
  • 361November – Constantius II, Roman Emperor (b. 317)source
  • 362Flavia Maxima Constantia, daughter of Constantius II (approximate date)source
  • 383Flavia Maxima Constantia, daughter of Constantius IIsource

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