Amphiaraus was a seer, and greatly honored in his time. Both
Zeus and
Apollo favored him, and Zeus gave him his oracular talent. In the generation before the
Trojan War, Amphiaraus was one of the heroes present at the
Calydonian boar hunt and also counted as an
Argonaut. The material of the tragic war of the
Seven against Thebes was taken up from several points of view by each of the three great Greek tragic poets. Eriphyle persuaded Amphiaraus to take part in the raiding venture, against his better judgment, for he knew he would die. He had foreseen the failure and for this reason did not agree to join at first. Eriphyle had been persuaded by
Polynices, who offered her the
necklace of Harmonia, daughter of
Aphrodite, once part of the bride-price of
Cadmus, as a bribe for her advocacy. Amphiaraus reluctantly agreed to join the doomed undertaking, but aware of his wife's corruption, asked his sons,
Alcmaeon and
Amphilochus, to avenge his inevitable death by killing her, should he not return. On the way to the battle, Amphiaraus repeatedly warned the other warriors that the expedition would fail, In the battle, Amphiaraus sought to flee from
Periclymenus, the "very famous" son of
Poseidon, who wanted to kill him, but Zeus threw his thunderbolt, and the earth opened to swallow and conceal Amphiaraus and his charioteer
Baton – right on the same spot the laurel had grown from his spear Thus becoming a
chthonic hero, Amphiaraus was later propitiated and consulted at his sanctuary. Alcmaeon killed his mother when Amphiaraus died. He was pursued by the
Erinyes as he fled across Greece, eventually landing at the court of King
Phegeus, who gave him his daughter
Alphesiboea in marriage. Exhausted, Alcmaeon asked an
oracle how to avoid the Erinyes and was told that he needed to stop where the sun was not shining when he killed his mother. That was the mouth of the river
Achelous, which had been silted up. Achelous himself,
god of that river, promised him his daughter,
Callirrhoe in marriage if Alcmaeon would retrieve the necklace and clothes which Eriphyle wore when she persuaded Amphiaraus to take part in the battle. Alcmaeon had given these jewels to Phegeus who, outraged, had his sons kill Alcmaeon when he discovered Alcmaeon's plan. ==Legacy==