Rhodiapolis, located on a hill near Sarıcasu Village in Kumluca District of Antalya, is considered to be a city founded by the Rhodians because of its name. It is one of the few Rhodian colonies in the region such as Gagai, Phaselis, Korydalla and Olympos, which are very close to it. According to Theopompos, Rhodiapolis was named after Rhodos, daughter of Mopsos. The settlement, whose name we learnt from Hekataios, developed after it was colonised by the Rhodians. All the cities in the region are members of the Lycian Union. The coins of Rhodiapolis and Gagai are labelled as "Lycians".