
Poseidon is best known as the Greek sea god, but he was also the god of horses and of earthquakes. (Thus, many of his temples were inland.) And he had some seriously strange children. Though humanoid, he fathered both the winged horse Pegasus (by Medusa, no less) and the Cyclops Polyphemus, who is blinded by Odysseus and his crew in the Odyssey. His Roman equivalent was Neptune.