References for the Papacy

Chadwick, H. The Early Church, 1967.

Knowles, David, Christian Monasticism, 1969.

Leclercq, J., F. Vandenbroucke, and L. Bouyer, The Spirituality of the Middle Ages, 1968.

McManners, J., ed., The Oxford Illustrated History of Christianity, 1990.

Tellenbach, Gerd, The Church in Western Europe from the Tenth to the Early Twelfth Century, T. Reuter, trans., 1993.

Brooke, R. and C. Brooke, Popular Religion in the Middle Ages, 1984.

Brooke, C., The Monastic World, 1974.