Dictionary of Battles / From the Earliest Date to the Present Time

by Thomas Benfield Harbottle

Margus.

Fought May, 285, between the legions of the Emperor Carinus and those of Diocletian, who had been raised to the purple by his soldiers. The troops of Diocletian, wasted by the Persian War, were all but overpowered by the fresher legions of Carinus, but the defection during the battle of one of his generals turned the scale, and Carinus himself being killed by an officer whom he had wronged, Diocletian gained a complete victory.