From Smith's Dictionary of Greek and Roman Biography and Mythology

CEPHEUS

1. A son of Belus and husband of Cassiepeia, was king of Ethiopia and father of Andromeda. ( Apollodorus ii)

2. A son of Aleus and Neaera or Cleobule, and an Argonaut from Tegea in Arcadia, of which he was king. He had twenty sons and two daughters, and nearly all of his sons perished in an expedition which they had undertaken with Heracles. The town of Caphyae was believed to have derived its name from him.

3. One of the Calydonian hunters. ( Apollodorus i)