When Hiyodorio-jo Castle was constructed during the Tenmon era, Takanobu TAKEDA, the first son of Kuninobu, left Hiyodorio-jo Castle to his younger brother Matasaburo TAKEDA, entered Tottori-jo Castle and adopted a posture to confront shugo Toyokazu YAMANA.
天文(元号)年間に鵯尾城が築城され、国信の嫡男武田高信が入ると弟の武田又三郎に鵯尾城を任せ、自らは鳥取城に入り守護山名豊数に対抗する様な姿勢を見せる。