It is located 9 km. northeast of Ödemiş/İzmir.(ref: Tmolos’ta saklı kutsal bir kent Dioshieron, Hüseyin Üreten, Journal of International Social Research , Vol 9, Issue 44: 562-578) Dios Hieron (Ancient Greek: Διὸς Ἱερόν, meaning 'Sanctuary of Zeus') was a town of ancient Lydia, in the upper valley of the Cayster River.[1] The city became part of the Roman Republic and the Roman province of Asia with the annexation of the Attalid kingdom.[2] It also bore the name Diospolis (Διόσπολις),[3] and was cited by the sixth century Byzantine geographer Stephanus of Byzantium under that name.[4] It was renamed to Christopolis or Christoupolis (Χριστούπολις, meaning 'city of Christ') in the 7th century and was known as Pyrgium or Pyrgion (Πυργίον) from the 12th century on.[2] Pyrgion fell to the Turks in 1307, and became the capital of the beylik of Aydin.[2] The town minted coins in antiquity, often with the inscription "Διοσιερειτων".[5]
Its site is located near Birgi, Asiatic Turkey.[6][7]
The Roman Era city had an ancient Christian bishop and is attested as an episcopal see from at least 451. It was a suffragan of Ephesus, which it remained under until the late 12th century when it became a separate metropolis.[2]
There are four known bishops from antiquity.
Today Dioshieron survives as titular see in the Roman Catholic Church,[8] so far the see has never been assigned.[9][10]
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Dios Hieron". Dictionary of Greek and Roman Geography. London: John Murray.
38°13′39″N 28°05′00″E / 38.2276°N 28.0833°E