There are three characters named Palaemon in Greek mythology:
This was the birth name given to the Greek hero Heracles and the name he used until the Pythoness at Delphi first addressed him as Herakles when he sought a cure for his madness. (Robert Graves, Greek Myths 122.d.)
The Greek hero Melicertes, the son of the Boeotian prince Athamas and Ino, daughter of Cadmus was later called Palaemon.
One of the Argonauts, a son of Hephaestus and a mortal, was named Palaemon.
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