"The Hohenstaufen (/ˈhoʊənʃtaʊfən/, also
US: /ˌhoʊənˈʃtaʊfən, -staʊ-/, German: [ˌhoːənˈʃtaʊfn̩]), also known as Staufer, were a dynasty of German kings (1138–1254) during the Middle Ages. Before ascending to ...
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the kingship, they were Dukes of Swabia from 1079. As kings of Germany, they had a claim to Italy, Burgundy and the Holy Roman Empire. Three members of the dynasty—Frederick I (1155), Henry VI (1191) and Frederick II (1220)—were crowned emperor. Besides Germany, they also ruled the Kingdom of Sicily (1194–1268) and the Kingdom of Jerusalem (1225–1268). The Hohenstaufen portrayed themselves as the successors of ancient Romans and their traditions." - (en.wikipedia.org 28.09.2019)