Alcmaeon had given these jewels to Phegeus, who had his sons kill Alcmaeon when he discovered Alcmaeon's plan: thus lest the curse be transmitted to a next generation it was dedicated to Aphrodite at Amathus in Cyprus.
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Dying Amphiaraus charged his sons Alcmaeon and Amphilochus with avenging his death, and after Amphiaraus died, fulfilling the prophecy, Alcmaeon killed his mother.
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Achelous, the god of that river, offered him his daughter Callirrhoe in marriage if Alcmaeon would retrieve the necklace and clothes that Eriphyle had worn when she persuaded Amphiaraus to take part in the battle.
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In this version of the myth, however, Argia, Polynices's wife, persuades her husband to give the necklace to Eriphyle so that Amphiaraus will join the war effort.
Eriphyle |
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 left his mother's, Eriphyle's, jewelry and clothing with him and then returned for it later in order to please the river god Achelous and have his daughter, Callirhoe, in marriage.