Daulin was son of King Memnos and he became King of Tantalus after his father's death. Unbeknownst to Daulin, Ares had killed his father and taken over the body of Jarton. In this guise, Ares told Daulin's sister, Poena that Daulin had poisoned their father. This began a war between the siblings for control of Tantalus and Ares fed the bodies of the dead soldiers to his dog, Graegus. Luckily, Hercules and Iolaus were able to stop the conflict and Daulin and Poena agreed to rule together.

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