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