Frederick VI, Duke of Swabia

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(Frederick I) and Beatrice I, Countess of Burgundy and brother of Henry VI, Holy Roman Emperor. Frederick married (or only betrothed) 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

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