THEY MIXED UP THE FREDERICKS That s why the dates make no sense Frederick Barbarossa was first Frederick II of Swabia was well second He ruled from Sicily fought the Lombard League united the empirefor awhile at leastand was crowned Holy Roman Emperor until a falling out with the pope ended with Frederick II of Swabia s excommunication They ve got the father and son and I think even the grandfather all mixed up here and throughout all the Hauhenstaufen references Sources Tons of em Look almost anywhere else