Dios Hieron (Lydia)

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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 Kingdom of Pergamon.[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]


  1. ^ Ptolemy. The Geography. Vol. 5.2.
  2. ^ a b c d Nesbitt, John W.; Oikonomides, Nicolas, eds. (1996). Catalogue of Byzantine Seals at Dumbarton Oaks and in the Fogg Museum of Art, Volume 3: West, Northwest, and Central Asia Minor and the Orient. Dumbarton Oaks Research Library and Collection. p. 45. ISBN 0-88402-250-1.
  3. ^ William Hazlitt (1851). The Classical Gazetteer. Vol. p. 137.
  4. ^ Stephanus of Byzantium. Ethnica. Vol. s.v. Διόσπολις.
  5. ^ "Lydia, Dioshieron - Ancient Greek Coins". WildWinds.com. Retrieved 2019-05-29.
  6. ^ Richard Talbert, ed. (2000). Barrington Atlas of the Greek and Roman World. Princeton University Press. p. 56, and directory notes accompanying.
  7. ^ Lund University. Digital Atlas of the Roman Empire.
  8. ^ Pius Bonifacius Gams, Series Episcoporum Ecclesiae Catholicae, Leipzig 1931, p. 444.
  9. ^ Dioshieron at Catholichierachy.org.
  10. ^ Dioshieron at GCatholic.org.

 This article incorporates text from a publication now in the public domainSmith, William, ed. (1854–1857). "Dios Hieron". Dictionary of Greek and Roman Geography. London: John Murray.

Coordinates: 38°13′39″N 28°05′00″E / 38.2276°N 28.0833°E / 38.2276; 28.0833