▁Yu ▁( 元 育 ) ▁the ▁Prince ▁of ▁Lin hu ai ▁and ▁Y uan ▁Z an ▁( 元 <0xE8> <0xB4> <0x8A> , ▁the ▁nep hew ▁of ▁Emperor ▁X ia ow u ) ▁the ▁Prince ▁of ▁Gu ang ping ▁that ▁plot ting ▁was ▁dangerous . ▁ ▁Emperor ▁Fe i ' s ▁plot , ▁however , ▁was ▁eventually ▁discovered ▁by ▁Y uw en ' s ▁other ▁sons - in - law . ▁ ▁Y uw en ▁de posed ▁and ▁imprison ed ▁Emperor ▁Fe i , ▁making ▁his ▁younger ▁brother ▁Y uan ▁Ku o ▁em peror ▁( as ▁Emperor ▁G ong ). ▁ ▁So on ▁there after , ▁Emperor ▁Fe i ▁was ▁put ▁to ▁death . ▁ ▁According ▁to ▁the ▁History ▁of ▁Northern ▁D ynast ies , ▁his ▁wife ▁Em press ▁Y uw en ▁" also ▁suffered ▁death ▁because ▁she ▁was ▁faithful ▁to ▁Wei ' s ▁imperial ▁house ," ▁although ▁it ▁is ▁unclear ▁exactly ▁how ▁she ▁died ▁or ▁whether ▁she ▁died ▁the ▁same ▁year ▁he ▁did . ▁ ▁Personal ▁information ▁▁ ▁Father ▁ ▁Emperor ▁W en ▁of ▁Western ▁Wei ▁ ▁Mother ▁ ▁Em press ▁Y if u ▁ ▁W ife ▁ ▁Em press ▁Y uw en ▁( created ▁ 5 5 1 ?, ▁d . ▁ 5 5 4 ?) ▁ ▁Son ▁ ▁E ld est ▁son ▁( born ▁ 5 4 8 ) ▁ ▁An c est ry ▁ ▁References ▁▁ ▁History ▁of ▁Northern ▁D ynast ies , ▁vol . ▁ 5 . ▁ ▁Z iz hi ▁T ong j ian , ▁vol s .