Frederick VI, Duke of Swabia
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Frederick VI of Hohenstaufen (1167 – January 20, 1191) was duke of Swabia from 1170 to his death at the siege of Acre. He was the third son of Frederick III Barbarossa and Beatrice I, Countess of Burgundy and brother of Henry VI, Holy Roman Emperor. Frederick married (or only bethroted) with the princess Constanze of Hungary, but had no known descendants.
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Preceded by Frederick V |
Duke of Swabia 1170–1191 |
Succeeded by Conrad II |