The army surrendered or dispersed.

Macrianus, the Praetorian prefect, shortly assumed the title of emperor, and marched against Gallienus, the son and colleague of Valerian, who had been left to direct affairs in the West.
But another rival started up in the East.

Sapor conceived the idea of complicating the Roman affairs by himself putting forward a pretender; and an obscure citizen of Antioch, a certain Miriades or Cyriades, a refugee in his camp, was invested with the purple, and assumed the title of Caesar.

[PLATE.

XIII.] [Illustration: PLATE 13.] The blow struck at Edessa laid the whole of Roman Asia open to attack, and the Persian monarch was not slow to seize the occasion.