Popes and patriarchs : an Orthodox perspective on Roman Catholic claims - Whelton, Michael (Ben Lomond, Calif. : Conciliar Press, 2006)
Includes bibliographical references (p. 173-177) and index.
Keywords: Photius -- I, -- Saint, Patriarch of Constantinople, -- approximately 820-approximately 891.; Orthodox Eastern Church -- Relations -- Catholic Church; Catholic Church -- Relations -- Orthodox Eastern Church; Orthodox Eastern Church -- Doctrines; Catholic Church -- History; Popes -- Primacy; Authority -- Religious aspects -- Catholic Church; Orthodox Eastern converts; Papacy -- History; Eastern churches -- History; Schism -- Eastern and Western Church; Divorce -- Religious aspects -- Orthodox Eastern Church; Remarriage -- Religious aspects -- Orthodox Eastern Church; Bulgaria -- Church history -- Middle Ages, 600-1500.