(), a son of Oeneus and Periboea (Gorge or Althaea),
was the husband of Deipyle, by whom he became the father of Diomedes ; he was king of Calydon,
and one of the princes who joined Polyneices in the expedition against Thebes. (
Tydeus was obliged to flee from his country in consequence of some murder which he had
committed, but which is differently described by the different authors, some saying that he
killed his father's brother, Melas, Lycopeus, or Alcathous ; others that he slew Thoas or
Aphareus, his mother's brother; others that he slew his brother Olenias, and others again that
he killed the sons of Melas, who had revolted against Oeneus (Schol. ad Stat.
Theb. 1.280, 402). He fled to Adrastus at Argos, who purified him from the murder, and
gave him his daughter Deipyle in marriage. With Adrastus he then went against Thebes, where he
was wounded by Melanippus, who, however, was slain by him. (Apollod. l.c.
; Eustath. ad Hom. pp. 288, 971.) When Tydeus lay on the ground
wounded, Athena appeared to him with a remedy which she had received from Zeus, and which was
to make him immortal. This, however, was prevented by a stratagem of Amphiaraus, who hated
Tydeus, for he cut off the head of Melanippus and brought it to Tydeus, who cut it in two and
ate the brain, or devoured some of the flesh. (Schol. ad Pind. Nem.
10.12; comp. ADRASTUS; AMPHIARAUS.)