Title: Von der Reichskirche Ottos I. zur Papstherrschaft Gregors VII
Subjects: Church history, History, Catholic Church, Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano) http://id.loc.gov/authorities/names/n79084169, Orthodox Eastern Church, Enlightenment, Doctrinal Theology, Christian sects, Sects, Eastern churches, Papacy
People: Gregory VII Pope (ca. 1015-1085)
Time periods: 11th century