A son of Poseidon and Tyro, the wife of Cretheus, a son of Aeolus. He was the king of Pylus and the twin brother of Pelias. He was later driven from his home in Thessaly by Pelias. Neleus departed and founded the town of Pylus in Messenia.
When Heracles needed to be purified for the murder of Iphitos, he first sought Neleus for help. Because of his friendship with Iphitos' father Eurytos, Neleus refused.
For revenge, Heracles later returned to Pylus and killed Neleus and all of his sons except Nestor, who had participated in the Calydonian Boar Hunt, and would later fight in the Trojan War.
Apollonius Rhodius. Argonautica.