Natural Histories A Philosophy of Falcons Frederick II, Holy Roman Emperor, was obsessed with falconry. This led him to write a truly revolutionary book on the subject. Alexander Lee | Published in History Today Volume 71 Issue 10 October 2021 To continue reading this article you need to purchase a subscription, available from only £5. Start my trial subscription now If you have already purchased access, or are a print & archive subscriber, please ensure you are logged in. Please email digital@historytoday.com if you have any problems. Natural HistoryLiterature Related Articles Isle of Dogs The Hunting Year Popular articles The Korean War of Prisoners Kings of the Pacific in an Age of Revolution