Franz von Werra, German World War II pilot with his pet lion Simba. Ace Luftwaffe fighter pilot Franz Xaver, Baron von Werra, an impoverished Baron of Swiss ancestry. He was shot down over Britain and captured. He escaped his POW camp in Canada and returned to Germany via the USA, Mexico, South America and Spain. Von Werra reported to the German High Command on his civilised treatment as a POW. This led to the improved treatment of allied POWs in Germany.