Who was the father of the man who refused to grant Lower Lorraine to Henry II, Duke of Limburg?
Henry II, Duke of Limburg:  He succeeded his father in Limburg with the title of duke, but Conrad III refused to grant him Lower Lorraine. Conrad III of Germany:  He was the son of Duke Frederick I of Swabia and Agnes, a daughter of the Salian Emperor Henry IV.
Duke Frederick I