Matilda of Swabia daughter of Emperor Henry III (c.1048–1060) (1045–1060) Parents Agnes of Poitou Henry III Children Agnes von Rheinfelden Siblings Judith of Swabia Henry IV Ida of Formbach-Ratelnberg Adelaide II, Abbess of Quedlinburg Beatrice I, Abbess of Quedlinburg Conrad II, Duke of Bavaria Partners Rudolf of Rheinfelden