From Citizendium, the Citizens' Compendium
Aithra : A character from Greek mythology who was a princess of Troezen, and mother of Theseus, by either Aigeus or Poseidon, according to Elizabeth Vandiver, Classics scholar, authority on Greek mythology and Greek tragedy, including the Iliad, Odyssey, Aeneid, Homer, and Virgil. This definition is based on her course Classical Mythology for The Teaching Company.
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