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Valentinian I

Type Figure Region Western Roman Empire Time 321–375 Also known as Valentinian the Great

Valentinian I (321–375) was Emperor of the Western Roman Empire (r. 364–375), from an Illyrian officer family in Pannonia.…

Timeline

  1. 321–363Sibium · PannoniaBorn in Sibium, Pannonia, he served in the army alongside his brother Valens, holding office under several emperers and renowned for valor and discipline; he was briefly sidelined after the death of Julian.
  2. 364–367Nicomedia · BithyniaRaised to the throne by the army in 364, he granted the east to his brother Valens and ruled the west himself; in 367 he elevated his son Gratian to co-Augustus, establishing the dynastic succession arrangement.
  3. 367–375Gaul and the Rhine frontier · GaulHe personally campaigned repeatedly on the Rhine and Danube frontiers, repelling invasions by the Alamanni, Quadi and other tribes; in 368–369 he campaigned in Britain to quell Picts and Scots unrest and reformed the western frontier defense system.

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