Valentinian I, Roman emperor (died 375)

Valentinian I

Roman emperor from 364 to 375

Valentinian I, sometimes known as 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…