The Peloponnesians then resolved that this should be done; and they made oath with one another on this condition⁠—that if Hyllos should conquer the leader of the Peloponnesians, then the sons of Heracles should return to their father’s heritage; but he should be conquered, then on the other hand the sons of Heracles should depart and lead away their army, and not within a hundred years attempt to return to the Peloponnese. There was selected then of all the allies, he himself making a voluntary offer, Echemos the son of Aëropos, the son of Phegeus,