Title: Byzantine Rome and the Greek Popes: Eastern Influences on Rome and the Papacy from Gregory the Great to Zacharias, A.D. 590-752, Author: Andrew J. Ekonomou
Title: Pope Innocent II (1130-43): The World vs the City / Edition 1, Author: John Doran
Title: The Papacy, 1073-1198: Continuity and Innovation, Author: I. S. Robinson
Title: The Italian Crusades: The Papal-Angevin Alliance and the Crusades Against Christian Lay Powers, 1254-1343, Author: Norman Housley
Title: The Papacy, 1073-1198: Continuity and Innovation / Edition 1, Author: I. S. Robinson