337

337

This article is about the year 337. For other uses, see 337 (number).

Centuries:	3rd century · 4th century · 5th century
Decades:	300s 310s 320s 330s 340s 350s 360s
Years:	334 335 336 337 338 339 340

337 by topic v • d • e
Politics
State leaders - Sovereign states
Birth and death categories
Births - Deaths
Establishment and disestablishment categories
Establishments - Disestablishments

Events

September 9 — Constantine II, Constantius II, and Constans succeed their father Constantine I and rule as co-emperors of the Roman Empire. The Tetrarchy ends.
September — A number of descendants of Constantius Chlorus, as well as officials of the Roman Empire, are executed. Responsibility for this purge is denied by the three Augusti.
Shapur II of Persia begins a war with the Roman Empire.

May 22 — Constantine I, Roman Emperor
September — Hannibalianus, King of the Pontus and nephew of Constantine I (executed)
September — Dalmatius, Caesar and nephew of Constantine I (executed)
September — Flavius Dalmatius, son of Constantius Chlorus and father of Hannibalianus and Dalmatius (executed)
September — Julius Constantius, son of Constantius Chlorus and father of Gallus and Julian (executed)
September — Patricius Optatus (executed)
September — Ablavius, Prefect of the Imperial Guard (executed)
Eustathius, Patriarch of Antioch (probable date)
Alexander, Patriarch of Constantinople