Tyriaeum or Tyriaion, also spelled Tyraion, was a Roman and Byzantine era civitas in the Roman Province of Pisidia,John Anthony Cramer, A Geographical and Historical Description of Asia Minor, With a Map, Volume 2 (At the University Press, 1832), p. 314. located ten parasangs from Iconium It was mentioned by Xenophon, and Pliny and Strabo tell us it was between Philomelium (Akshehr) and Laodicea Combusta.Charles Anthon, A Classical Dictionary: Containing ... Proper Names Mentioned in Ancient Authors (Harper & Bros., 1841) p 768. It is thought to be near modern Ilgın.

History Cyrus the Younger reviewed his troops for the Cilician queen at Tyriaeum in Phrygia.Travels in the Track of the Ten Thousand Greeks: being a geographical and descriptive account of the expedition of Cyrus, and of the retreat of the Ten Thousand Greeks, as related by Xenophon (J. W. Parker, 1844). page 33. The town was recognized as a polis by Eumenes II of Pergamon in a set of royal letters found inscribed in the schoolyard of Mahmuthisar village south of Ilgin. It then formed part of the Roman Empire and later the Byzantine Empire.

During the 11th century, had a substantial Christian population and was so well fortified that even after the defeat at Mantzikert 1071 the Turks were unable to capture it.

The town was taken by Suleiman the Magnificent and Tamerlane.Francis-Vyiyan-Jago Arundell, Visit to the Seven Churches of Asia, with an Excursion Into Pisidia (John Rodwell, 1828) p203. In 1308 during the Crusades there was a massacre of refugees from Ephesus in this town by Sultan Abu Zayyan I.Francis-Vyiyan-Jago Arundell, Visit to the Seven Churches of Asia, with an Excursion Into Pisidia (John Rodwell, 1828) p54.

Bishopric The city was the seat of an ancient Bishopric. Bishop TheotececnusRichard Price, Michael Gaddis, The Acts of the Council of Chalcedon, Volume 1 (Liverpool University Press, 2005)p 84. cast a vote at the Council of Chalcedon. No longer a residential bishopric, it remains a titular see of the Roman Catholic Church.Catholic Hierarchy Tyriaeum was long mistaken as the site of Thyatira of the Apocalypse.

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