Attila The Hun

Theodosius I

Theodosius I was a Roman emperor who made Nicene Christianity central to imperial power and was the last to rule both eastern and western halves.

Born
347 CE
Died
395 CE
Role
Roman emperor

Roman emperor (347-395)

Portrait of Theodosius I in imperial regalia with Christian emblems
Facts

Theodosius I timeline facts

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347
Origins

Theodosius was born into a Roman military family in Hispania.

379
Imperial rise

He became emperor in the East after disaster and instability.

390s
Civil wars

He defeated rivals and briefly ruled both halves of the Roman Empire.

395
Legacy

After his death, the empire was permanently divided between his sons.

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347

Origins

Theodosius was born into a Roman military family in Hispania.

379

Imperial rise

He became emperor in the East after disaster and instability.

380s

Christian empire

He promoted Nicene Christianity and restricted rival religious traditions.

390s

Civil wars

He defeated rivals and briefly ruled both halves of the Roman Empire.

395

Legacy

After his death, the empire was permanently divided between his sons.

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This profile is written for educational use and connects to related Stories of History pages. Illustrations are original artistic interpretations.

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Further reading

  1. Encyclopaedia Britannica, Search results for Theodosius I,” accessed June 2026.Open source
  2. WorldCat, Books and library holdings for Theodosius I,” accessed June 2026.Open source

Primary sources

  1. Library of Congress, Search results for Theodosius I,” accessed June 2026.Open source

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