The Nibelungen: The Historical Truth - A comparison of the Germanic legendary heroes Dietrich von Bern and the Nibelungen with Theodoric the Great and the Burgundians of Late Antiquity. Frederick of Hohenstaufen - A brief essay on the Holy Roman Emperor Frederick II as one of the Saints of Ecclesia Gnostica Catholica. Olga's Gallery - Sultan Mehmet II - Biography of the famous Ottoman ruler who conquered Constantinople (Istanbul/Byzantium) in 1453. Famous Men of the Middle Ages - Text of the book written by John H. Haaren and A. B. Poland. Civil Patrons of Christianity - The complete text from The History of the Christian Church by Henry C. Sheldon, 1895 Frederick II, Stupor Mundi (1215 - 1250) - A biography of the 'Wonder of the World', the Holy Roman Emperor who shaped 12th century Europe.