Porthaon

Porthaon (Greek Πορθάων, latin often Parthaon ) In Greek mythology, the son of Agenor and the Epikaste, thus a descendant of Endymion. He was king in Pleuron and Calydon. With Euryte he begat sons Oineus, Agrios, Alcathous, Melas and Leukopeus and daughter Sterope that should have been the mother of the Sirens.

In Homer is called as king of Calydon and Pleuron Portheus.