▁attacked ▁Chap ar , ▁forcing ▁him ▁to ▁surrender ▁ ▁his ▁territory ▁to ▁Du wa ▁in ▁ 1 3 0 6 . ▁Meanwhile , ▁Prince ▁T urg hai ▁inv aded ▁the ▁Del hi ▁Sultan ate ▁in ▁ 1 3 0 3 ▁and ▁lo oted ▁the ▁Del hi ▁region . ▁In ▁ 1 3 0 4 ▁they ▁inv aded ▁again ▁but ▁suffered ▁a ▁cr ushing ▁defeat . ▁Du wa ▁died ▁soon ▁after ▁and ▁was ▁succeeded ▁by ▁his ▁son ▁K ön che k , ▁who ▁ruled ▁only ▁for ▁a ▁year ▁and ▁a ▁half ▁before ▁he ▁died . ▁One ▁of ▁Bu qa ▁Tem ür ' s ▁brothers , ▁T ali qu , ▁seized ▁power , ▁but ▁Du wa ' s ▁family ▁re bel led ▁and ▁killed ▁him ▁at ▁a ▁ban quet . ▁Du wa ' s ▁younger ▁son ▁K eb ek ▁became ▁k han . ▁K eb ek ▁inv aded ▁the ▁Del hi ▁S ut un ate ▁again ▁in ▁ 1 3 0 5 , ▁lo oting ▁the ▁Mult an ▁region , ▁but ▁suffered ▁a ▁defeat ▁on ▁the ▁way ▁back . ▁Chap ar ▁took ▁advantage ▁of ▁the ▁political ▁tur mo il ▁to ▁attack ▁K eb ek ▁but ▁was ▁defeated ▁and ▁fled ▁to ▁the ▁Y uan ▁dynast y . ▁Another ▁kur il ta i ▁was ▁held ▁in ▁the ▁Ch ag ata i ▁Khan ate , ▁which ▁elected ▁another ▁of ▁Du wa ' s ▁sons , ▁Es en ▁Bu qa ▁I , ▁who ▁took ▁the ▁throne ▁c eded ▁by ▁K eb ek . ▁In ▁ 1 3 1 5