English: The Roman Empire in 337 AD after the conquests of emperor Constantine the Great. Roman territory is dark purple, Constantine's conquests in Dacia are shaded dark purple, and Roman dependencies are light purple. There are four areas of Roman dependencies: the Iazyges (center left), the Tervingi (center, above shaded purple), the Bosporan Kingdom (top middle) and Armenia, Colchis, Iberia, and Albania (top right).