▁Ba ▁suddenly ▁desert ed , ▁leaving ▁Lu oy ang ▁and ▁returning ▁home . ▁Besides , ▁C ao ▁Pi ' s ▁younger ▁brother ▁C ao ▁Z hang ▁( also ▁born ▁to ▁Lady ▁Bian ) ▁had ▁arrived ▁in ▁Lu oy ang ▁in ▁a ▁hur ry , ▁resulting ▁in ▁rum ours ▁that ▁he ▁was ▁int ending ▁to ▁se ize ▁power ▁from ▁his ▁elder ▁brother . ▁Upon ▁hearing ▁these ▁news ▁at ▁C ao ▁C ao ' s ▁headquarters ▁at ▁Ye ▁( in ▁present - day ▁Hand an , ▁Heb ei ), ▁C ao ▁Pi ▁hast ily ▁declared ▁himself ▁the ▁new ▁King ▁of ▁Wei ▁( <0xE9> <0xAD> <0x8F> 王 ) ▁and ▁issued ▁an ▁ed ict ▁in ▁the ▁name ▁of ▁his ▁mother ▁Queen ▁Dow ager ▁Bian , ▁before ▁receiving ▁an ▁official ▁confirm ation ▁from ▁Emperor ▁X ian , ▁to ▁whom ▁he ▁still ▁nomin ally ▁paid ▁alleg iance . ▁After ▁C ao ▁Pi ' s ▁self - de clar ation , ▁neither ▁C ao ▁Z hang ▁nor ▁any ▁other ▁individual ▁took ▁action ▁against ▁him . ▁C ao ▁Pi ▁then ▁ordered ▁his ▁brothers , ▁including ▁C ao ▁Z hang ▁and ▁C ao ▁Z hi , ▁to ▁return ▁to ▁their ▁respective ▁f ief s . ▁With ▁the ▁help ▁of ▁Ji ang ▁Ji , ▁the ▁political ▁situation ▁soon ▁stabil ised . ▁ ▁As ▁em peror ▁of ▁C ao ▁Wei ▁ ▁S uc ceed ing ▁Emperor ▁X ian ▁ ▁In ▁the ▁winter ▁of ▁ 2 2 0 , ▁C ao ▁Pi ▁made ▁his ▁move ▁for ▁the ▁imperial ▁throne , ▁strongly ▁suggesting ▁to ▁Emperor ▁X