Valentinian I

Valentinian I
Solidus of Valentinian marked: d·n· valentinianus p·f· aug·
Roman emperor
Reign26 February 364 – 17 November 375
PredecessorJovian
SuccessorGratian and Valentinian II
Co-emperorValens (in the East)
Born321
Cibalae, Pannonia, Roman Empire (now Vinkovci, Croatia)
Died17 November 375 (aged 54)
Brigetio, Pannonia Valeria (now Szőny, Hungary)
SpouseMarina Severa
Justina
Issue
Regnal name
Imperator Caesar Flavius Valentinianus Augustus
DynastyValentinianic
FatherGratianus Funarius
ReligionNicene Christianity

Valentinian I (Latin: Valentinianus; 321 – 17 November 375), sometimes known as Valentinian the Great, was Roman emperor from 364 to 375. He is the second-last emperor to govern the empire as a whole, albeit he only did so from February 26th to March 28th of 364, after which he appointed Valens to rule over the Eastern half the empire, while he remained in control of the West. During his reign, he fought successfully against the Alamanni, Quadi, and Sarmatians, strengthening the border fortifications and conducting campaigns across the Rhine and Danube. Also, his general Theodosius the Elder defeated a revolt in Africa and the Great Conspiracy (a coordinated assault on Roman Britain by Picts, Scoti, and Saxons). Valentinian founded the Valentinian dynasty, with his sons Gratian and Valentinian II succeeding him in the western half of the empire and his daughter Galla marrying emperor Theodosius I.