Historical Context
The martyrdom belongs to the long persecution of Christians under Shapur II, who ruled Persia from 309 to 379 and pursued Christians with particular intensity from 339 onward. Tradition connects the persecution to the period after Constantine the Great's conversion: a letter from Constantine on behalf of the Christians of Persia is said to have made Shapur suspicious of his Christian subjects as potential sympathizers with Rome, and after military setbacks against the Romans he ordered the destruction of churches and the execution of clergy, later extending the measures to lay Christians as well.
The persecution fell upon bishops, priests, monks, nuns, and soldiers alike; ancient accounts number its victims in the thousands. Modern scholarship treats some elements of the traditional narrative with caution, noting that it was elaborated in later centuries, but the historical reality of a severe and sustained persecution under Shapur II is well attested.