Evenus was the son of Ares by Demonice, a mortal woman. He became the father of Marpessa. There was another Evenus who was the son of Selepus. He became king of Lyrnessus, near Troy. The name is fitting for a king or for one in authority since it means 'reining well' (no pun intended), from eu-, 'good' and henia, 'rein'.