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Church History
Roman emperor · 347–395

Theodosius I

The emperor who made catholic Christianity the religion of the empire in 380 and summoned the Council of Constantinople in 381. Under his laws, dissent from the state church became a crime.

Early life

A General's Son from Spain

Theodosius was born on 11 January, probably in 347, in Hispania, the Roman provinces of Spain, by tradition at Cauca in the province of Gallaecia. His father, also named Theodosius, was one of the empire's leading generals, and the son learned war at his side in Britain before holding his own command on the Danube. In 375 or 376 his father was suddenly executed at Carthage, a victim of court intrigue, and the younger Theodosius withdrew to the family estates in Spain.

Disaster recalled him. On 9 August 378 the Goths destroyed an eastern Roman army at Adrianople and killed the emperor Valens. The western emperor, Gratian, needed a soldier to save the East, and on 19 January 379 he raised Theodosius to be emperor of the eastern provinces. For several years Theodosius fought and bargained with the Goths, and in 382 he settled them inside the empire as allies under their own leaders.

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