In Greek mythology, Cyathus (), was the Calydonian youthful cup-bearer of his kinsman King OeneusPausanias, 2.13.8. He was the son of ArchitelesScholia ad Apollonius Rhodius, 1.1212 compare with Diodorus Siculus, 4.36.2 — he was named as Eurynomus and Apollodorus, 2.7.6 — he was only referred as the son of Architeles or of Pyles and the brother of Antimachus.Athenaeus, 9.80 as cited from Nicander's second book of History of Oeta. In some accounts, Cyathus was called Archias (Ἀρχίαν)Athenaeus, 9.80 as cited from Hellanicus' Histories, Cherias (Χερίαν)Athenaeus, 9.80 as cited from Hellanicus' second book of Phoronis, Eunomus (Εὔνομος)Athenaeus, 9.80 as cited from Herodorus' seventeenth book of the Exploits of Hercules or EurynomusDiodorus Siculus, 4.36.2.

Mythology When Heracles visited his father-in-law Oeneus, Cyathus was killed by the hero who struck him on the head with one of his fingers or with a blow of his fist. This is on account of a fault committed in the discharge of his duty. Seeing that it was an accident, Architeles pardoned Heracles but the latter in accordance with the law, exiled himself and went to Ceyx at Trachis.Apollodorus, 2.7.6; Pausanias, 2.13.8; Diodorus Siculus, 4.36.2–3; Athenaeus, 9.80

Cyathus was honored at Phlius with a sanctuary close by the temple of Apollo.Pausanias, 2.13.8 Meanwhile, according to Nicander's second book of History of Oeta, a temple was dedicated by Heracles in Proschium, which to this day is called the Temple of the Cupbearer.

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References

Apollodorus, The Library with an English Translation by Sir James George Frazer, F.B.A., F.R.S. in 2 Volumes, Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1921. ISBN 0-674-99135-4. Online version at the Perseus Digital Library. Greek text available from the same website. Athenaeus of Naucratis, The Deipnosophists or Banquet of the Learned. London. Henry G. Bohn, York Street, Covent Garden. 1854. Online version at the Perseus Digital Library. Athenaeus of Naucratis, Deipnosophistae. Kaibel. In Aedibus B.G. Teubneri. Lipsiae. 1887. Greek text available at the Perseus Digital Library. Diodorus Siculus, The Library of History translated by Charles Henry Oldfather. Twelve volumes. Loeb Classical Library. Cambridge, Massachusetts: Harvard University Press; London: William Heinemann, Ltd. 1989. Vol. 3. Books 4.59–8. Online version at Bill Thayer's Web Site Diodorus Siculus, Bibliotheca Historica. Vol 1-2. Immanel Bekker. Ludwig Dindorf. Friedrich Vogel. in aedibus B. G. Teubneri. Leipzig. 1888-1890. Greek text available at the Perseus Digital Library. 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.