Nauplius (mythology)  In Greek mythology, Nauplius (, "Seafarer") is the name of one (or more) mariner heroes. Whether these should be considered to be the same person, or two or possibly three distinct persons, is not entirely clear. The most famous Nauplius, was the father of Palamedes, called Nauplius the Wrecker, because he caused the Greek fleet, sailing home from the Trojan War, to shipwreck, in revenge for the unjust killing of Palamedes. This Nauplius was also involved in the stories of Aerope, the mother of Agamemnon and Menelaus, and Auge, the mother of Telephus. The mythographer Apollodorus says he was the same as the Nauplius who was the son of Poseidon and Amymone. Nauplius was also the name of one of the Argonauts, and although Apollonius of Rhodes made the Argonaut a direct descendant of the son of Poseidon, the Roman mythographer Hyginus makes them the same person. However, no surviving ancient source identifies the Argonaut with the father of Palamedes. The sea god Poseidon fathered a son Nauplius, by Amymone, daughter of Danaus. This Nauplius was reputed to have been the eponymous founder of Nauplia (modern Nafplion) in Argolis, and a famous navigator who discovered the constellation Ursa Major (Great Bear). Apollonius of Rhodes says that he was the ancestor of an Argonaut with the same name, via the lineage: Nauplius - Proetus - Lernus - Naubolus - Clytoneus - Nauplius. According to Pherecydes of Athens, he was the father of Damastor, and through him, the grandfather of Peristhenes, and the great-grandfather of Dictys and Polydectes. He was renowned as an expert seafarer, and possibly the inventor of seafaring as a practice; a harbor equipped by him to function as a port was said to have been named in his honor. Nauplius, also called "Nauplius the Wrecker", was a king of Euboea, and the father of Palamedes. According to Apollodorus, the son of Poseidon and Amymone, and the father of Palamedes are one person who "lived to a great age".