Lacyon

For the Hellenistic marble sculpture, see Laocoön and his Sons. Laocoön (Λαοκόων [laok'ooːn], usual English pronunciation [leɪ'ɒkəʊɒn]), the son of Acoetes was a Trojan priest of Poseidon, or of Apollo, whose rules he had defied by marrying and having sons or had committed an impiety by having sex with his wife in the presence of a cult image in a sanctuary; his minor role in the Epic Cycle narrating the Trojan War was of warning the Trojans in vain against accepting the Trojan Horse from the Greeks— "A deadly fraud is this," he said, "devised by the Achaean chiefs!"— and for his subsequent divine execution by serpents sent from the sea.
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[Greek heroic] In Greek mythology, Lacyon was a priest of Apollo and Poseidon, the king of Troy, and the son of Priam and Hecuba. He infuriated Apollo by marrying and having children, which broke his priestly vow of celibacy. Lacyon was chosen by the Trojans to make sacrifices to Poseidon, whose priest had been murdered nine years earlier. As Lacyon¹s twin sons, Antphas and Thymbreus stood at Poseidon¹s altar, Apollo sent two gigantic serpents at them in vengeance. The serpents coiled around them and crushed them to death.