Heracles
Heracles' sack of Troy

Before Homer 's Trojan War, Heracles had made an expedition to Troy and sacked it. Previously, Poseidon had sent a sea monster (Greek: kētŏs, Latin: cetus) to attack Troy. The story is related in several digressions in the Iliad (7.451–53; 20.145–48; 21.442–57) and is found in pseudo-Apollodorus' Bibliotheke (2.5.9). This expedition became the theme of the Eastern pediment of the Temple of Aphaea. Laomedon planned on sacrificing his daughter Hesione to Poseidon in the hope of appeasing him. Heracles happened to arrive (along with Telamon and Oicles) and agreed to kill the monster if Laomedon would give him the horses received from Zeus as compensation for Zeus' kidnapping Ganymede. Laomedon agreed. Heracles killed the monster, but Laomedon went back on his word. Accordingly, in a later expedition, Heracles and his followers attacked Troy and sacked it. Then they slew all Laomedon's sons present there save Podarces, who was renamed Priam, who saved his own life by giving Heracles a golden veil Hesione had made. Telamon took Hesione as a war prize and they had a son, Teucer.
detectable_content:postscript