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Prince of Pylos
Legacy of Poseidon
Vital Statistics
Gender Male
Family Neleus (father)
Chloris (mother)
Nestor (brother)
Poseidon (grandfather)
Xu Fu (descendant)
Shen Lun (descendant)
Frank Zhang (descendant)
Emily Zhang (descendant)
Grandma Zhang (descendant)
Percy Jackson (paternal half-uncle)
Status Deceased
Eye Color Unknown
Hair Color Unknown
Height Unknown
Affiliation The Argonauts
The Argo
Weapons Unknown
Species Legacy
Home Pylos, Greece
Greek/Roman form None
Appearances The Son of Neptune (mentioned)
Actor None
Quests The First Quest for the Golden Fleece

Periclymenus was an Argonaut and a grandson (or Legacy) of Poseidon.


Pericylmenus received the ability to shapeshift into various animals from his grandfather. When Hercules waged war against Neleus, King of Pylos, for refusing to purify Hercules for the murder of Iphitus, Hercules killed eleven of the twelve sons of Neleus, one of which was Periclymenus. With the assistance of Athena, Hercules recognized Periclymenus as a bee, settled upon the yoke of his chariot and shot him with an arrow.

The Heroes of Olympus

The Son of Neptune

Frank Zhang and the rest of his family are descendants of Periclymenus. Every member of his direct family are able to transform into animals as Periclymenus passed down this ability. After Frank learns about his lineage, he tells Percy Jackson that they are related, much to Percy's, Hazel's, and later Tyson's surprise.


  • Shapeshifting: Periclymenus has the ability to change into any animal he wishes, mythical or real.

Poseidon, his grandfather

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