Paris (mythology)

Paris (Greek: Πάρις; also known as Alexander or Alexandros, c.f. ) was a child of Priam and Hecuba. He is king of Troy, and appears in a number of Greek legends. Probably the best-known was his elopement with Helen, queen of Sparta, this being one of the immediate causes of the Trojan War. Later in the war, he fatally wounds Achilles in the heel with an arrow, as foretold by Achilles's mother, Thetis

The Titan's Curse
Percy briefly mentions about Paris when talking to Aphrodite about tragic love stories in a white limousine at the Junkyard of the Gods.