... > Classical Mythology and Ancient History > the Greek heroic legends (I) > (story of) Hercules (Heracles) > aggressive, unfriendly activities and relationships of Hercules > Hercules in combat with heroes, gods, or fabulous beings > Hercules in combat with heroes, etc.: first series > Cycnus, the son of Mars, fights a chariot-combat with Hercules; Cycnus is assisted by Mars, Hercules by Iolaus and Minerva > after slaying Cycnus, Hercules wounds Mars; Jupiter parts the combatants with a thunderbolt