Greek mythology Greek mythology is the body of myths originally told by the Ancient Greece, ancient Greeks, and a genre of ancient Greek folklore, today absorbed alongside Roman mythology into the broader designation of classical mythology. These stories conc ...

, Oncius () or Oncus () was a son of

Apollo Apollo is one of the Twelve Olympians, Olympian deities in Ancient Greek religion, ancient Greek and Ancient Roman religion, Roman religion and Greek mythology, Greek and Roman mythology. Apollo has been recognized as a god of archery, mu ...

and a ruler over Ónkeion (), a region of Arcadia adjacent to

Thelpusa Thelpusa or Thelpousa (, ), or Telphusa or Telphousa (Τέλφουσα), was a town in the west of ancient Arcadia, situated upon the left or eastern bank of the river Ladon. Its territory was bounded on the north by that of Psophis, on the south ...

, as well as

eponym An eponym is a noun after which or for which someone or something is, or is believed to be, named. Adjectives derived from the word ''eponym'' include ''eponymous'' and ''eponymic''. Eponyms are commonly used for time periods, places, innovati ...

of a city

Oncae Oncae or Onkai () was a small town in ancient Arcadia. Its name came from Oncus, a son of Apollo. William Smith suggests that the town may be the same as Onceium Onceium or Onkeion () was a village in ancient Arcadia upon the river Ladon, near The ...

. He owned a herd of horses, in which

Demeter In ancient Greek religion and Greek mythology, mythology, Demeter (; Attic Greek, Attic: ''Dēmḗtēr'' ; Doric Greek, Doric: ''Dāmā́tēr'') is the Twelve Olympians, Olympian goddess of the harvest and agriculture, presiding over cro ...

tried to hide from

Poseidon Poseidon (; ) is one of the twelve Olympians in ancient Greek religion and mythology, presiding over the sea, storms, earthquakes and horses.Burkert 1985pp. 136–139 He was the protector of seafarers and the guardian of many Hellenic cit ...

's advances, changing herself into a mare. Poseidon did mate with her in the shape of a stallion, which resulted in the birth of the fantastic horse

Arion Arion (; ) was a kitharode in ancient Greece, a Dionysiac poet credited with inventing the dithyramb. The islanders of Lesbos claimed him as their native son, but Arion found a patron in Periander, tyrant of Corinth. Although notable for his mu ...

. Oncius kept Arion and later gave him away to

Heracles Heracles ( ; ), born Alcaeus (, ''Alkaios'') or Alcides (, ''Alkeidēs''), was a Divinity, divine hero in Greek mythology, the son of ZeusApollodorus1.9.16/ref> and Alcmene, and the foster son of Amphitryon.By his adoptive descent through ...

as the latter was starting a military campaign against

Elis Elis also known as Ellis or Ilia (, ''Eleia'') is a historic region in the western part of the Peloponnese peninsula of Greece. It is administered as a regional unit of the modern region of Western Greece. Its capital is Pyrgos. Until 2011 it ...

. Pausanias, ''Description of Greece'', 8. 25. 5 & 10

Notes

References

* Pausanias, ''Description of Greece'' with an English Translation by W.H.S. Jones, Litt.D., and H.A. Ormerod, M.A., in 4 Volumes. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1918.
Online version at the Perseus Digital Library
* Pausanias, ''Graeciae Descriptio.'' ''3 vols''. Leipzig, Teubner. 1903.
Greek text available at the Perseus Digital Library
*

Stephanus of Byzantium Stephanus or Stephen of Byzantium (; , ''Stéphanos Byzántios''; centuryAD) was a Byzantine grammarian and the author of an important geographical dictionary entitled ''Ethnica'' (). Only meagre fragments of the dictionary survive, but the epit ...

, ''Stephani Byzantii Ethnicorum quae supersunt,'' edited by August Meineike (1790-1870), published 1849. A few entries from this important ancient handbook of place names have been translated by Brady Kiesling
Online version at the Topos Text Project.
Children of Apollo Arcadian mythology {{Greek-myth-stub