畠山氏
The Tedorigawa Campaign was precipitated by Uesugi intervention inside the domain of the Hatakeyama clan in Noto Province, an Oda client state. This event provoked the Uesugi incursion, there was a coup d'état led by the pro-Oda General Chō Shigetsura, that killed Hatakeyama Yoshinori, the lord of Noto, and replaced him with Hatakeyama Yoshitaka as a puppet ruler. As a result, Uesugi Kenshin, the head of the Uesegi clan, mobilized an army to lead into Noto against Shigetsura.