Tydeus

In Greek mythology, Tydeus (/ˈtaɪdiəs, -djuːs, ˈtɪdiəs/; Greek: Τυδεύς Tūdeus) was an Aeolian hero of the generation before the Trojan War. He was one of the Seven Against Thebes, and the father of Diomedes, who is frequently known by the patronymic Tydides.

Tydeus was a son of Oeneus and either Periboea, Oeneus's second wife, or Gorge, Oeneus's daughter. He was the husband of Deipyle, the mother of Diomedes.

Tydeus was banished from Calydon by his uncle Agrius, because he killed either his brother or a different uncle or six of his cousins. He travelled to Argos, where he married Deipyle, daughter of king Adrastus.

While housing Tydeus, King Adrastus of Argos also lodged Polynices, the exiled son of Oedipus who had shared the rule of Thebes with his brother Eteocles before he was expelled by the latter. Late one night, the two young exiles got into a fierce dispute over the guest room in Adrastus’s palace. Awakened by the clamor, Adrastus rushed to the hall to find the two men locked in a brawl. It was then that Adrastus recalled a prophecy that had instructed him to “yoke his daughters to a boar and a lion”. Adrastus recognized Tydeus as the boar and Polynices as the lion (either by the ferocious manner in which they fought, the animals emblazoned on their shields, or the animal skins they wore) and wed his daughters to them, keeping them as his sons-in-law in Argos.

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