Clytemnestra produced four offspring from two eggs: Castor and Clytemnestra from one egg, and Helen and Polydeuces (Pollux) from the other. Therefore, Castor and Clytemnestra were fathered by Tyndareus, whereas Helen and Polydeuces were fathered by Zeus. Agamemnon and his brother Menelaus were in exile at the home of Tyndareus; in due time Agamemnon married Clytemnestra and Menelaus married Helen. In a late variation, Euripides's "Iphigenia at Aulis", Clytemnestra's first husband was Tantalus, King of Pisa; Agamemnon killed him and Clytemnestra's infant son, then made Clytemnestra his wife. In another version, her first husband was King of Lydia. The kings of
Theban kings in Greek mythology no Theban leader is mentioned by Homer in the "Iliad". Theban kings in Greek mythology The dynastic history of Thebes in Greek mythology is crowded with a bewildering number of kings between the city's new foundation (by Cadmus) and the Trojan War (see Ogyges). This suggests several competing traditions, which mythographers were forced to reconcile. The first kings of the Boeotia region (before Cadmus and the flood of Deucalion) were Calydnus and Ogyges (Ogygos). The first king of the settlement that would become Thebes was Cadmus, after whom the city was originally called Cadmeia. It only became known as Thebes