However, Masamori died within the year, the conflict between Tamekage and Sadazane UESUGI, a new governor, took place in Echigo, local lords in northern Shinano (including the neighboring Inoue family) sided with the Uesugi, and the Takanashi clan was isolated as the Nagao side.
しかしその年のうちに政盛が死去、越後では為景と新守護上杉定実の争いが起き、近隣の井上一族を始め北信濃の国人衆が上杉方に付き、唯一の長尾方として孤立していく事となる。