Amphiaraus

In Greek mythology, the son of Oecles and Hypermestra, and father of Alcmaeon and Amphilocus. A seer and warrior, he drove Adrastus, his cousin, out of Argos. Later, Adrastus resentfully gave his sister, Eriphyle, in marriage to Amphiaraus, stipulating that if the two cousins quarelled again, she would give judgement. Adrastus called on a reluctant Amphiaraus to march against Thebes in order to restore Polynices to the throne. Eriphyle pronounced in favour of the war and before leaving, Amphiaraus made his young sons swear to avenge him. As the campaign was ending, Zeus caused the earth to be opened and Amphiaraus was swallowed up. Zeus granted him immortality and he continued to utter oracles at Oropus in Attica.

In Greek mythology, Amphiaraus, or Amphiaraos ("doubly-cursed") was the son of Oicles and Hypermnestra, and husband of Eriphyle. Amphiaraus was the King of Argos along with Adrastus, brother of Eriphyle, and Iphis.

Eriphyle persuaded Amphiaraus to take part in the Seven Against Thebes raid, though he knew he would die. Amphiaraus reluctantly agreed to join the battle and asked his sons, Alcmaeon and Amphilochus to avenge his death. On the way to the battle, Amphiaraus often warned the other warriors that the expedition would fail, and blamed Tydeus for starting it. In the battle, Amphiaraus sought to flee from Poriclymenus, the son of Poseidon, who wanted to kill him, but Zeus threw his thunder and the earth opened to swallow Amphiaraus together with his chariot.

Alcmaeon killed his mother when Amphiaraus died. The god of that river, also named Achelous, gave him his daughter, Callirhoe 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 had his sons kill Alcmaeon when he discovered Alcmaeon's plan.

During the battle, Amphiaraus killed Melanippus.

In Oropos, Northwest of Attica, Amphiaraus was worshipped as with a hero cult. The healing and fortune-telling aspect of Amphiaraus came from him ancestry: he was related to the great seer Melampus.

Roman tradition speaks of a son of Amphiaraus named Catillus who escaped from the slaughter at Thebes and led an expedition to Italy where he founded a colony where eventually appeared the city of Tibur (now Tivoli), named after his eldest son Tiburtus.