Dalmatius

Flavius Julius Dalmatius (died c. 337), sometimes spelled Delmatius, was caesar of the Roman Empire from 335 to 337, under Emperor Constantine the Great. He oversaw Thrace, Macedonia, and Achaea.

The son of Constantine's half-brother Flavius Dalmatius, Dalmatius was educated by Bishop Exuperius while his family was in exile in Toulouse and by the poet Aemilius Magnus Arborius in Constantinople. His family came to Constantinople in the 330s and Dalmatius was raised to be the fourth caesar under Constantine, alongside Constantine II, Constans I, and Constantius II. Dalmatius was murdered by his soldiers during a massacre of the male members of the Constantinian dynasty after the death of Constantine. His territory was divided between Constantius II and Constans I.