The local samurai land owners in the northern Shinano area in the north of Zenko-ji Temple (such as the Takanashi clan and the Inoue clan), who were in a cooperative relationship with the Murakami clan against the Takeda clan, had originally connections with the Nagao family, the Echigo no Shugodai (the acting Military Governor of Echigo Province) family since they competed against the Murakami clan over the control of the northern Shinano area.
対武田では村上氏と協力関係にあった善光寺平以北の北信濃国人衆（高梨氏や井上氏の一族など）は、元々村上氏と北信の覇権を争っていた時代から越後の守護代家であった長尾氏と繋がりがあった。