Von der Reichskirche Ottos I. zur Papstherrschaft Gregors VII
Church historyHistoryCatholic ChurchVatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano) http://id.loc.gov/authorities/names/n79084169Orthodox Eastern ChurchEnlightenmentDoctrinal TheologyChristian sects
Writing a summary for young readers…
For young readers
Book data: Open Library