Iolaos
nephew of Heracles in Greek mythology
In Greek mythology, Iolaus (Greek: Ἰόλαος, Iólaos) was the nephew of Herakles, son of the hero's twin brother Iphicles and Automedusa. He was famed for having assisted Herakles in completing his Labors, serving as the hero's charioteer. A genus of Lycaenid butterfly has been named after him.
