Eteocles

In Greek mythology, Eteocles Ἐτεοκλῆς was a king of Thebes, the son of Oedipus and either Jocasta or Euryganeia. The name is from earlier *Etewoklewes Ἐτεϝοκλέϝες, meaning "truly glorious". Tawaglawas is thought to be the Hittite rendition of the name. Oedipus killed his father Laius and married his mother without knowing his relationship to either. When the relationship was revealed, he was expelled from Thebes. The rule passed to his sons Eteocles and Polynices. However, because of a curse from their father, the two brothers did not share the rule peacefully. Eteocles was succeeded by his uncle, Creon.

Read more about Eteocles:  Oedipus's Curse, Quarrel Over The Rule of Thebes