Isauria, the district of Pisidia, forming the S. W. corner of the modern Karamania, was under the ecclesiastical jurisdiction of Iconium.  “In the heart of the Roman monarchy, the Isaurians long continued a nation of wild barbarians.  Succeeding powers, unable to reduce them to obedience either by arms or policy, were compelled to acknowledge their weakness by surrounding the hostile and independent spot with a strong chain of fortifications (Hist. Aug. 197) which often proved insufficient to restrain the invasions of these domestic foes.”  Gibbon. chap. X.  Raids and Arian persecution had disorganised the Isaurian Episcopate.  (Maran, Vit. Bas.)