▁west , ▁where ▁the ▁south ▁area ▁of ▁Ale ppo ▁still ▁retain s ▁the ▁H ellen istic ▁grid ▁street ▁plan . ▁ ▁Roman ▁and ▁By z antine ▁periods ▁After ▁the ▁Rom ans ▁de posed ▁the ▁Sele uc id ▁dynast y ▁in ▁ 6 4 ▁BC , ▁the ▁cit adel ▁hill ▁continued ▁to ▁have ▁religious ▁significance . ▁Emperor ▁Julian , ▁in ▁his ▁ 3 6 3 ▁AD ▁visit ▁to ▁Ale ppo ▁noted ▁" I ▁stayed ▁there ▁for ▁a ▁day , ▁visited ▁the ▁ac ropol is , ▁offered ▁a ▁white ▁b ull ▁to ▁Ze us ▁according ▁to ▁imperial ▁custom s , ▁and ▁held ▁a ▁short ▁talk ▁with ▁the ▁town ▁council ▁about ▁worship ing ▁the ▁gods ." ▁Very ▁few ▁physical ▁remains ▁have ▁been ▁found ▁from ▁the ▁Roman ▁age ▁in ▁the ▁Cit adel . ▁ ▁The ▁Roman ▁Empire ▁was ▁divided ▁into ▁two ▁parts ▁in ▁ 3 9 5 . ▁Ale ppo ▁was ▁in ▁the ▁eastern ▁half , ▁By z ant ium . ▁During ▁the ▁cl ash es ▁with ▁the ▁S ass an ian ▁king ▁Kh os ra u ▁II ▁in ▁the ▁ 7 th ▁century , ▁the ▁population ▁of ▁Ale ppo ▁is ▁said ▁to ▁have ▁taken ▁refuge ▁in ▁the ▁Cit adel ▁because ▁the ▁city ▁wall ▁was ▁in ▁a ▁de pl or able ▁state . ▁Currently , ▁very ▁few ▁remains ▁from ▁the ▁By z antine ▁period ▁have ▁been ▁found ▁on ▁the ▁Cit adel ▁Hill , ▁although ▁the ▁two ▁mos ques ▁inside ▁the ▁Cit adel ▁are ▁known ▁to ▁be ▁converted ▁from ▁churches ▁originally ▁built ▁by ▁the ▁By z ant ines