What was the man that preceded Frederick IV of Hohenstaufen also known as in another language?
Frederick I, Holy Roman Emperor Frederick I (German: "Friedrich I" , Italian: "Federico I" ; 1122 – 10 June 1190), also known as Frederick Barbarossa (Italian: "Federico Barbarossa" ), was the Holy Roman Emperor from 1155 until his death. He was elected King of Germany at Frankfurt on 4 March 1152 and crowned in Aachen on 9 March 1152. He became King of Italy in 1155 and was crowned Roman Emperor by Pope Adrian IV on 18 June 1155. Two years later, the term "sacrum " ("holy") first appeared in a document in connection with his Empire. He was later formally crowned King of Burgundy, at Arles on 30 June 1178. 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.
Frederick VI, Duke of Swabia Frederick VI of Hohenstaufen (February 1167 – 20 January 1191) was duke of Swabia from 1170 to his death at the siege of Acre. He was born in Modigliana, the third son of Frederick I Barbarossa and Beatrice I, Countess of Burgundy and brother of Henry VI, Holy Roman Emperor. Frederick was betrothed to the princess Constance of Hungary, but they never married. He died, aged 24, at Acre.