Titular see in Phrygia Pacatiana. Tiberiopolis is mentioned by Ptolemy (V, 2, 25); Socrates (Church History VII.46); and Herocles (Synec., 668, 9). It struck its own coins at least from the time of Trajan. Its exact site is unknown, but it was situated in the region of Egri Gueuz, caza of Kutachia, vilayet of Brusa. Ancient Greek "Notitiae episcopatuum" mention it among the suffragans of Laodicea. In the eighth century it was attached to the metropolitan See of Hierapolis and as such appears in the "Notitiae episcopatuum" until the thirteenth century. Le Quien (Oriens christ., I, 797) mentions five of its bishops known by their presence at councils: Eustathius at Constantinople (536); Silas at Constantinople (553); Anastasius at Constantinople (692); Michael at Nicaea (787); Theoctistus at Constantinople (879).
SMITH, Dict. of Greek and Roman geog., s.v.; RAMSAY, Asia Minor (London, 1890), 147, 458.