In Greek mythology, Cycnus or Cygnus was a bloodthirsty and cruel man who dwelt either in Pagasae, Thessaly or by the river Echedorus in Macedonia.
Heracles fights Cycnus from a metope of the Treasury of the Athenians at Delphi, Greece.
Zeus parts Athena and Ares, while Kyknos flees in a chariot (right) as Heracles arrives (left), on an Attic black-figured volute-krater, c. 540–510 BCE signed by Nikosthenes (British Museum).
Heracles, born Alcaeus or Alcides, was a divine hero in Greek mythology, the son of Zeus and Alcmene, and the foster son of Amphitryon. He was a descendant of Perseus, another son of Zeus.
Cycnus (son of Ares)
…the son of Ares by Pelopia or Pyrene. He married Themistonoe, daughter of King Ceyx of Trachis. Cycnus killed all of his guests until he was slain by Heracles. According to Pausanias, one of the men murdered by him was Lycus of Thrace. Pseudo-Apollodorus wrote of Cycnus the Thessalian, the son of Pelopia, and…
One of the most famous depictions of Heracles, Farnese Hercules, Roman marble statue on the basis of an original by Lysippos, 216 CE. National Archaeological Museum, Naples, Italy
Heracles carrying his son Hyllus looks at the centaur Nessus, who is about to carry Deianira across the river on his back. Antique fresco from Pompeii.
Greek mythology influenced the Etruscans. This vase at Caere shows King Eurytus of Oechalia and Heracles in a symposium. Krater of corinthian columns called 'Krater of Eurytion', c. 600 BCE
Heracles strangling snakes (detail from an Attic red-figured stamnos, c. 480–470 BCE)