ed ▁T ian ▁Hong zh eng ▁and ▁planned ▁to ▁lead ▁the ▁We ib o ▁soldiers ▁in ▁a ▁campaign ▁to ▁a ven ge ▁T ian ▁Hong zh eng , ▁but ▁fell ▁ill ▁and ▁could ▁not ▁do ▁so . ▁ ▁Emperor ▁M uz ong ▁thus ▁re called ▁T ian ▁Bu , ▁who ▁was ▁then ▁obser ving ▁a ▁m our ning ▁period ▁for ▁T ian ▁Hong zh eng , ▁to ▁serve ▁as ▁the ▁military ▁governor ▁of ▁We ib o . ▁ ▁T ian ▁Bu ▁decl ined ▁several ▁times , ▁but ▁the ▁imperial ▁government ▁ins isted . ▁ ▁T ian ▁Bu ▁bid ▁fare well ▁to ▁his ▁wife , ▁children , ▁and ▁household ▁guests , ▁stating , ▁" I ▁will ▁not ▁come ▁back !" ▁ ▁He ▁reported ▁to ▁We ib o ▁without ▁the ▁custom ary ▁fan fare ▁with ▁b ann ers ▁and ▁gu ards , ▁and ▁while ▁he ▁was ▁still ▁some ▁ 3 0 ▁li ▁( rough ly ▁ 1 5 ▁kilom eters ) ▁away ▁from ▁We ib o ' s ▁capital ▁Wei ▁Pref ect ure ▁( <0xE9> <0xAD> <0x8F> 州 ), ▁he ▁changed ▁into ▁m our ning ▁clothes ▁and ▁entered ▁the ▁city ▁in ▁tears . ▁ ▁He ▁sold ▁ancest ral ▁properties ▁and ▁distributed ▁the ▁proceed s ▁to ▁the ▁soldiers , ▁while ▁turning ▁down ▁his ▁own ▁sal ary . ▁ ▁He ▁also ▁respect ed ▁the ▁senior ▁officers ▁as ▁if ▁they ▁were ▁his ▁older ▁brothers . ▁ ▁In ▁winter ▁ 8 2 1 , ▁T ian ▁Bu ▁launched ▁his ▁ 3 0 , 0 0 0 ▁troops ▁to ▁attack