▁the ▁orders ▁of ▁one ▁of ▁Nob un aga ' s ▁chief ▁command ers , ▁Tak ig awa ▁Kaz um as u . ▁Mas ay uki ▁managed ▁to ▁retain ▁most ▁of ▁his ▁domain , ▁but ▁had ▁to ▁ab d icate ▁Num ata ▁Castle ▁to ▁Tak ig awa ▁Mas ush igue , ▁Kaz um as u ' s ▁relative . ▁ ▁T ens h ō - J ingo ▁Conf lict ▁ ▁However , ▁Nob un aga ▁soon ▁died ▁at ▁the ▁Inc ident ▁at ▁H onn ō - ji ▁on ▁June ▁ 2 1 st , ▁ 1 5 8 2 . ▁Upon ▁Nob un aga ' s ▁death , ▁O da ▁cl an ' s ▁grasp ▁over ▁former ▁Tak eda ▁territ ories ▁weak ened . ▁Am id st ▁the ▁cha os , ▁O da ▁retain ers ▁who ▁were ▁assigned ▁by ▁Nob un aga ▁to ▁govern ▁those ▁territ ories , ▁such ▁as ▁Mor i ▁Nag ay oshi ▁and ▁K aw aj iri ▁H id et aka ▁amongst ▁others , ▁either ▁fled ▁or ▁were ▁killed ▁by ▁local ▁ins urre ction . ▁See ing ▁this , ▁neighbor ing ▁Tok ug awa , ▁H ō j ō ▁and ▁U es ug i ▁cl ans ▁all ▁started ▁to ▁contest ▁this ▁vac u um ▁of ▁power ▁in ▁Shin ano , ▁K ō zu ke ▁and ▁K ai ▁provinces . ▁This ▁was ▁called ▁the ▁T ens h ō - J ingo ▁Conf lict . ▁ ▁On ▁July ▁ 5 th , ▁Tak ig awa ▁Kaz um as u ▁lost ▁decis ively ▁against