This volume explores how forced movement and exile of clerics developed over time and ultimately came to shape interactions between the late-antique Roman Empire, the Byzantine, post-Roman, and early medieval worlds. It investigates the politics and legal mechanics of ecclesiastical exile, the locations associated with life in exile, both in literary sources and in material culture, as well as the multitude of strategies which ancient and early medieval authors, and the exiles themselves, employed to create historical narratives of banishment. The chapters are revised versions of papers given at international conferences held at the Martin-Luther-University Halle-Wittenberg, the German Historical Institute London, and the University of Alcalá in 2016 and 2017.