Flavius Claudius Julianus was born to Julius Constantius, half-brother of Constantine the Great.

Most of his family murdered in purge following Constantine's death. Julian and half-brother Gallus spared.

Exiled with Gallus to remote imperial estate. Received Christian education but secretly drawn to philosophy.

Allowed to study in cities. Studied under pagan philosophers who sparked his interest in traditional religion.

Secretly initiated into pagan mysteries while outwardly remaining Christian. Studied under Neoplatonists.

Half-brother Gallus executed by Constantius II. Julian feared he would be next.

Unexpectedly appointed Caesar by Constantius II. Married Helena, the emperor's sister.

Led successful military campaigns against Germanic tribes despite having no prior military experience.

Won decisive victory against Alemanni confederation. Established reputation as brilliant military commander.

Troops proclaimed him Augustus after Constantius demanded he send legions east. Civil war loomed.

Constantius II died en route to confront Julian. Became undisputed sole emperor of the Roman Empire.

Publicly declared paganism and began efforts to restore traditional Roman religion and temples.

Wrote philosophical treatise attacking Christianity. Implemented policies favoring paganism.

Banned Christians from teaching classical literature. Attempted to create organized pagan church.

Launched massive invasion of Sassanid Persia. Reached capital Ctesiphon but couldn't take it.

Mortally wounded by spear during retreat from Persia. Died on June 26. Last pagan Roman emperor.

Reportedly spent final hours discussing philosophy with companions. Pagan restoration died with him.

Christians labeled him 'Apostate.' His reign marked last serious attempt to reverse Christianization of Rome.