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Synonyms for Barbarossa (same or very similar meaning)

WordNet sense 1 (Holy Roman Emperor from 1152 to 1190; conceded supremacy to the pope; drowned leading the Third Crusade (1123-1190)):
Frederick I, Frederick Barbarossa

WordNet sense 2 (Barbary pirate (died in 1546)):
Khayr ad-Din


From the ODE community, based on WordNetadd/edit