Share This Article 1. From the 790s to the 1000s Christian monks often prayed to be spared from the fury of these people. The Huns The Viking The Avars The Moors 2. This German general’s nickname was “The Sphinx.” Paul von Hindenburg Wilhelm Groener Hans von Seeckt Rüdiger von Goltz 3. This German World War One flying ace’s autobiography was titled in English: Ace of the Iron Cross Wilhelm Frankl Hermann Goering Lothar von Richthofen Ernst Udet Loading …