Papacy — Audiobooks
The Empire and the Papacy, 918-1273
by T. F. (Thomas Frederick) Tout
Peter's Rock in Mohammed's Flood, from St. Gregory the Great to St. Leo III
by T. W. (Thomas William) Allies
The Purpose of the Papacy
by John S. (John Stephen) Vaughan
Leo XIII., the Great Leader
by Rev. A. P. Doyle