The site of Roman Hadrionopolis in South Paphlagonia was a settlement during the Late Chalcolithic, Roman and Early Byzantine periods.
See:
- Christian Marek: Stadt, Ära und Territorium in Pontus-Bithynia und Nord-Galatia ( Istanbuler Forschungen. Band 39). Tübingen, Wasmuth 1993, pp. 187–21
- Annuario Pontificio 2013, Libreria Editrice Vaticana 2013, p. 826
- Ergün Laflı, Chris Lightfoot, Max Ritter, Byzantine coins from Hadrianoupolis in Paphlagonia, Byzantine and Modern Greek Studies, 40(2), pp. 187-206