Wikipedia
Sillyon
Sillyon , also Sylleion , 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 Selyniys, possibly deriving from the original Hittite Sallawassi. Its modern Turkish names are Yanköy Hisarı or Asar Köy.