Notes to the Agamemnon

The chief characters in the play belong to one family, as is shown by the two genealogies:—

I.

TANTALUS
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Pelops
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Atreus Thyestes
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Agamemnon Menelaus Aigisthos
(= Clytemnestra) (= Helen) (= Clytemnestra)
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Iphigenia Electra Orestes

(Also, a sister of Agamemnon, name variously given, married Strophios, and was the mother of Pylades.)

II.

Tyndareus = Leda = Zeus
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Clytemnestra Castor Polydeuces Helen