Sillyon

Sillyon, Stephanus of Byzantium called it Σύλειον, Σύλαιον, Σύλλον and Σίλονον in Byzantine times Syllaeum or Syllaion, was an important fortress and city near Attaleia in Pamphylia, on the southern coast of modern Turkey. The native Greco-Pamphylian form was Selywiys, possibly deriving from the original Hittite Sallawassi. Its modern Turkish names are Yanköy Hisarı or Asar Köy.

Source: Wikipedia