Since the notion was invented within the Viennese academic milieu of the late 19th century, prosopography has become a major discipline in the field of ancient history, particularly of late Antiquity (3rd-4th to 7th-8th centuries). Contextualizing Late Antique Christianity in its social, cultural, spiritual and material environments requires a thorough historical data collection, as it relies upon an extensive epigraphic corpus, a wide variety of literary sources, a large array of archaeological reports, and a myriad of scholarly studies. Eastern Asia Minor is an area of great importance for a better understanding of the local and regional progress of ancient Christianity during Late Antiquity. Religion and politics need to be reintegrated into a full-scale and unbiased history that will seek no longer to separate Church from State, people from places, and literary texts from other documentary sources. As many of the social and political structures of the modern world took shape in Late Antiquity, we need to study all the documents bequeathed by this period in order to understand in a regional context how the Church slowly enfranchised itself from the administrative frame and developed its own structures along the lines established by the Roman Empire.