Ancient Greek and Roman Myths Notes

Laocoon was a Trojan priest, whom we know from Iliad by Homer. He distrusted the wooden horse, which the Greeks made on Odysseus' advice and in which the Greeks were hiding. Poseidon, turned against the Trojans and sent a huge serpent, which emerged from the sea and destroyed Laocoon and his sons.
See: El Greco Laocoon.