What was the man that preceded Frederick IV of Hohenstaufen also known as in another language?
Frederick IV, Duke of Swabia: Frederick IV of Hohenstaufen (1145–1167) was duke of Swabia, succeeding his cousin, Frederick Barbarossa, Holy Roman Emperor, in 1152. Frederick I, Holy Roman Emperor:  He was named "Barbarossa " by the northern Italian cities which he attempted to rule: Barbarossa means "red beard" in Italian; in German, he was known as "Kaiser Rotbart ", which has the same meaning.
i don't know