Chaonia
Chaonia or Chaon was the name of the northwestern part of Epirus, the homeland of the Epirote Greek tribe of the Chaonians. It was one of the three main areas of ethnic division of Epirus, the other being Molossia and Thesprotia.
Chaonia traditionally stretched between the Thyamis river in the south and the Akrokeraunian range in the north, between present-day Greece and Albania. Its main town was called Phoenice. In Virgil's Aeneid, Chaon was the eponymous ancestor of the Chaonians.
Name
According to mythology, the eponymous ancestor of the Chaonians was Chaon. Etymologically, both the region of Χαονία 'Chaonia', and the name of its inhabitants Χάονες 'Chaones, Chaonians', derive from Χάων 'Chaon', which in turn derives from the Greek *χαϝ-ών 'place with abysses'; cf. Χάον ὄρος 'Chaon mountain' in Argolis, χάος 'chaos, space, abyss', χάσκω 'to yawn', χάσμα 'chasm, gorge'.Geography
Strabo in his Geography, places Chaonia between the Ceraunian mountains in the north and the River Thyamis in the south. The Roman historian, Appian, mentions Chaonia as the southern border in his description and geography of Illyria.Important cities in Chaonia included Cestrine, Chimaera, Buthrotum, Phoenice, Cassiope Panormos, Ilium Onchesmus, Antigonia and Palaeste.