2.16
And Agamemnon reigned over the Mycenaeans and married Clytaemnestra, daughter of Tyndareus, after slaying her former husband Tantalus, son of Thyestes, with his child.As to Tantalus, the first husband of Clytaemnestra, and his murder by Agamemnon, see Eur. IA 1148ff.; Paus. 2.18.2, Paus. 2.22.2ff. According to Pausanias, he was a son of Thyestes or of Broteas, and his bones were deposited in a large bronze vessel at Argos. And there were born to Agamemnon a son Orestes, and daughters, Chrysothemis, Electra, and Iphigenia.In Hom. Il. 9.142ff. Agamemnon says that he has a son Orestes and three daughters, Chrysothemis, Laodice, and Iphianassa (Iphigenia), and he offers to give any one of his daughters in marriage to Achilles without a dowry, if only that doughty hero will forgive him and fight again for the Greeks against Troy. Electra, the daughter of Agamemnon, who figures so prominently in Greek tragedy, is unknown to Homer, and so is the sacrifice of Agamemnon's third daughter, Iphigenia. And Menelaus married Helen and reigned over Sparta, Tyndareus having ceded the kingdom to him.See above, Apollod. 3.11.2.
3.1
But afterwards Alexander carried off Helen, as some say, because such was the will of Zeus, in order that his daughter might be famous for having embroiled Europe and Asia; or, as others have said, that the race of the demigods might be exalted.
