▁Ju qu ▁N anch eng ▁( <0xE6> <0xB2> <0xAE> <0xE6> <0xB8> <0xA0> 男 成 ) ▁and ▁Ju qu ▁M eng x un , ▁broke ▁away ▁from ▁Later ▁Li ang ▁and ▁established ▁Northern ▁Li ang ▁in ▁ 3 9 7 , ▁Li ▁G ao ▁became ▁a ▁county ▁magistr ate ▁under ▁Du an ▁Ye ' s ▁governor ▁of ▁Dun hu ang ▁Command ery ▁( rough ly ▁modern ▁Dun hu ang , ▁G ans u ), ▁M eng ▁Min ▁( <0xE5> <0xAD> <0x9F> <0xE6> <0x95> <0x8F> ). ▁ ▁When ▁M eng ▁died ▁in ▁ 4 0 0 , ▁the ▁officials ▁of ▁Dun hu ang ▁Command ery , ▁because ▁Li ▁G ao ▁was ▁popular ▁with ▁the ▁people , ▁asked ▁him ▁to ▁take ▁over . ▁ ▁Initial ly , ▁Li ▁G ao ▁was ▁hes it ant , ▁but ▁Song ▁ad vised ▁him ▁to ▁accept , ▁stating ▁to ▁him ▁that ▁a ▁p ony ▁with ▁a ▁white ▁fore head ▁had ▁just ▁recently ▁been ▁born . ▁ ▁Li ▁G ao ▁therefore ▁accepted ▁and ▁requested ▁confirm ation ▁from ▁Du an ▁Ye , ▁and ▁Du an ▁Ye ▁agreed . ▁ ▁However , ▁Du an ▁Ye ' s ▁official ▁Su o ▁Si ▁( 索 <0xE5> <0x97> <0xA3> ), ▁a ▁friend ▁of ▁Li ▁G ao ' s , ▁war ned ▁Du an ▁Ye ▁of ▁Li ▁G ao ' s ▁amb itions ▁and ▁ad vised ▁Du an ▁Ye ▁not ▁to ▁allow ▁Li ▁G ao ▁to ▁remain ▁in ▁control ▁of ▁Dun hu ang . ▁ ▁Du an ▁Ye ▁therefore ▁sent ▁Su o ▁Si ▁to ▁take ▁over ▁Li