Polybus (Greek: Πόλυβος) was the king of Sicyon, son of Hermes and Chthonophyle, daughter of the eponym of Sicyon. He inherited the throne of Sicyon from his grandfather; he had a daughter Lysimache or Lysianassa whom he married to Talaus of Argos. His successor was his grandson Adrastus. Some authors considered Glaucus to be his son by Euboea.
References
Polybus of Sicyon Wikipedia(Text) CC BY-SA