(Πήιον/ Pḗion, Latin Peium; Πεῶν χωρίον/Peôn chōríon), Deiotarus' treasure fortress (Str. 12,5,2; Cic. Deiot. 17). Hellenistic and Byzantine castle, built in a meander of the river Siberis (Kirmir Çayi) on a steep-sided rock plateau, modern Tabanoğlu Kalesi. Strong entrenchment fortification, cisterns, traces of a palace and a tunnel stairway in the northern part of the site.
S. Mitchell, Blucium and Peium, in: AS 24, 1974, 61-74
K. Strobel, Galatica II, in: Orbis Terrarum 6, 2000