Eurybius

Eurybius appears in classical Greek mythic registers as a proper name for at least two distinct noble figures. In one genealogy he is listed as a Pylian prince, a son of King Neleus and Chloris and a sibling of Nestor and other Neleids. In a separate tradition he is enumerated among the children of King Eurystheus and Antimache of Tiryns; within that narrative context his death is tied to the conflicts surrounding the Heracleidae and Heracles. The sources present these as distinct personages who share the same name rather than a single recurring supernatural entity.

No physical description is supplied in the cited sources. Eurybius is attested solely through genealogical lists and narrative references; the traditions offer no details about his bodily features, clothing, or distinguishing marks.

The sources do not attribute supernatural powers or particular habitual behaviors to any figure named Eurybius. Attestations focus on kinship and fate: as offspring of Neleus or of Eurystheus he serves as a node in dynastic and heroic narratives. Reported actions are limited to his inclusion among princes who meet violent ends in the Heracles/Heracleidae cycles (killed either in battle by Athenians or slain in one account by Heracles at a sacrificial meal).