Achilles Relief Recreation (about 3 1/2 by 2 1/2 inches, resin cast). Achilles (Ancient Greek: á¼ˆÏ‡Î¹Î»Î»ÎµÏÏ‚, Akhilleus) was a Greek hero of the Trojan War, the central character and the greatest warrior of Homer's Iliad. See also the movie "Troy". Achilles was invulnerable in all of his body except for his heel. As he died because of a small wound on his heel, the term Achilles' heel has come to mean a person's principal weakness (Wikipedia).