 Thereafter, Harald is reported in the sagas to have gone to Jerusalem and fought in battles in the area.Although the sagas place this after his expedition to Sicily, historian Kelly DeVries has questioned that chronology.Whether his trip was of a military or peaceful nature would depend on whether it took place before or after the 1036 peace treaty between Michael IV and the Muslim Fatimid Caliph Ma'ad al-Mustansir Billah (in reality the Caliph's mother, originally a Byzantine Christian, since the Caliph was a minor), although it is considered unlikely to have been made before.