After the Takeda family was annihilated, Kawanakajima was controlled by Nagayoshi MORI, a retainer of the Oda family, but losing Oda's support after the Honnoji Incident, he retreated from there.
武田家壊滅後の川中島は織田の家臣森長可によって支配されたが本能寺の変で後ろ盾を失い撤退する。