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Cestrus was a city in the Roman province of Isauria, in Asia Minor. Its placing within Isauria is given by Hierocles, Georgius Cyprius, and Parthey's (Notitiae episcopatuum).[1] While recognizing what the ancient sources said, Lequien supposed that the town, whose site has not been identified, took its name from the River Cestros and was thus in Pamphylia.[2] Following Lequien's hypothesis, the 19th-century annual publication Gerarchia cattolica identified the town with "Ak-Sou", which Sophrone Pétridès called an odd mistake, since this is the name of the River Cestros, not of a city.[1]


Bishop Epiphanius of Cestrus was present at the Council of Chalcedon in 451, and subscribed the joint letter of the bishops of Isauria to the emperor Leo I the Thracian in 458 concerning the killing of Proterius of Alexandria.[2][3][4] The Jacobite Michael the Syrian reports that another, Elpidius, was a partisan of Severus of Antioch.[1]

No longer a residential bishopric, Cestrus is today listed by the Catholic Church as a titular see.[5]


  1. ^ a b c Sophrone Pétridès, "Cestra" in Catholic Encyclopedia (New York 1908)
  2. ^ a b Michel Lequien, Oriens christianus in quatuor Patriarchatus digestus, Paris 1740, Vol. II, coll. 1025-1026
  3. ^ Raymond Janin, v. Cestros, in Dictionnaire d'Histoire et de Géographie ecclésiastiques, vol. XII, Paris 1953, col. 253
  4. ^ Pius Bonifacius Gams, Series episcoporum Ecclesiae Catholicae, Leipzig 1931, p. 438
  5. ^ Annuario Pontificio 2013 (Libreria Editrice Vaticana 2013 ISBN 978-88-209-9070-1), p. 868