Euteiches, together with his brothers, helped their father usurped the throne of Lacedaemonia and expelled the former king, Tyndareus, the son of Gorgophone and Hipocoon's (half-)brother.[5] Ultimately, the Hippocoöntids and their father were slain by Heracles who also restored Tyndareus as the rightful ruler of the Lacedeamonians.[6] The bad blood between these two parties can be attributed to the following reasons: (1) the refusal of Hippocoon and his family to cleanse the hero after the death of Iphitus when he came to Sparta,[7] (2) Euteiches and his brothers joined King Neleus of Pylos in his war with the Heracles, and (3) for the manslaughter of Oeonus, son of Licymnius and the hero's cousin, who was beaten to death by the Hippocoöntids with their clubs for stoning in self-defense their Molossian dog. For the latter incident, Heracles straightway give them battle as he was very angry but was wounded in the hip-joint[8] and he stealthily retreated. Afterwards, the son of Alcmene made an expedition against Sparta enlisting the aid of King Cepheus of Arcadia and his sons, and succeeded in avenging himself on Hippocoon, and also on Euteiches and his brothers, for their murder of Oeonus.[9]