▁created ▁the ▁Duke ▁of ▁Z ha o , ▁as ▁the ▁el dest ▁son ▁of ▁a ▁prince . ▁ ▁After ▁a ▁joint ▁Tang ▁and ▁Hu ige ▁force ▁commanded ▁by ▁Emperor ▁Su z ong ' s ▁son ▁Li ▁Ch u ▁the ▁Prince ▁of ▁Ch u ▁re capt ured ▁Lu oy ang ▁as ▁well , ▁Li ▁X ian , ▁then ▁also ▁carrying ▁the ▁title ▁of ▁minister ▁of ▁r ites ▁( <0xE7> <0xA6> <0xAE> 部 <0xE5> <0xB0> <0x9A> 書 , ▁Lib u ▁Shang sh u ), ▁along ▁with ▁his ▁colle agues ▁Lü ▁Y in ▁and ▁C ui ▁Q i ▁( <0xE5> <0xB4> <0x94> 器 ), ▁were ▁put ▁in ▁charge ▁of ▁jud ging ▁the ▁cases ▁against ▁former ▁Tang ▁officials ▁who ▁had ▁surrender ed ▁to ▁and ▁served ▁the ▁Yan ▁regime . ▁ ▁It ▁was ▁said ▁that ▁Lü ▁and ▁C ui ▁were ▁har sh , ▁but ▁Li ▁X ian ▁was ▁merc iful ▁and ▁gained ▁a ▁good ▁reputation ▁from ▁his ▁jud g ments . ▁ ▁In ▁late ▁ 7 5 7 , ▁after ▁they ▁had ▁jud ged ▁most ▁of ▁the ▁cases , ▁Lü ▁and ▁C ui ▁proposed ▁that ▁those ▁former ▁officials ▁who ▁had ▁served ▁Yan ▁should ▁all ▁be ▁put ▁to ▁death . ▁ ▁Li ▁X ian ▁pointed ▁out ▁that ▁the ▁re bell ion ▁had ▁not ▁entirely ▁been ▁put ▁down ▁yet , ▁and ▁further , ▁some ▁officials ▁were ▁co er ced ▁into ▁serving ▁Yan , ▁and ▁should ▁be ▁treated ▁differently ▁from ▁those ▁who ▁open ly ▁emb rac ed ▁Yan ▁causes . ▁ ▁At ▁Li ▁X ian ' s ▁suggestion , ▁Emperor ▁Su