Judith of Bavaria, Duchess of Swabia mother of Frederick Barbarossa (1100–1130) Parents Wulfhilde of Saxony Henry IX, Duke of Bavaria Children Frederick Barbarossa Bertha, duchess of Lorraine Siblings Mathilde of Bavaria Welf VI, Margrave of Tuscany Henry X Sophia of Bavaria Conrad of Bavaria Wolfhilde of Bavaria Partners Frederick II, Duke of Swabia