Calchas/Definition

A character from Greek mythology who was the seer or prophet of Agamemnon during the Trojan War. He advised Agamemnon to kill his daughter Iphigeneia before setting sail for Troy in order to have favorable winds, a sacrifice demanded by the goddess Artemis. Source: 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.