The Hohenstaufen (Staufer) dynasty of Germany inherited the Norman Kingdom of Sicily through marriage in 1186, with Frederick II ruling both the Holy Roman Empire and Norman Sicily, building castles like Castel del Monte that combined Norman and German architectural traditions.
The German Luftwaffe conducted the Blitz bombing campaign against London from September 1940 to May 1941, a verified historical event extensively documented in both German and British archives.
Charles IV, Holy Roman Emperor and King of Bohemia from the House of Luxembourg, built Karlštejn Castle in 1348 to house the imperial regalia and crown jewels of the Holy Roman Empire.
President John F. Kennedy, of Irish heritage, delivered his famous “Ich bin ein Berliner” speech in West Berlin on June 26, 1963, and the square was renamed John-F.-Kennedy-Platz in his honor.
