Laocoon and his Sons. This is dated around 160 to 20 B.C., and was acquired by Pope Julius II in the early 1500s. According to the myth, Laocoon didn't trust the gift of the Trojan Horse by the Greeks, and threw his spear at the horse. As a result, Poseidon, who supported the Greeks, had sea serpents strangle Lacoon and his sons, Antiphantes and Thymbraus.