When the power of Kamakurafu eroded as the result of the Eikyo Disturbance in the era of sixth shogun Yoshinori ASHIKAGA, Nobumitsu's son Nobushige TAKEDA achieved distinguished war service in the Battle of Yuki and seized the opportunity to restore the clan.
6代将軍足利義教の頃には永享の乱で鎌倉府が衰亡し、信満の子の武田信重の代に結城合戦で功績を挙げ再興のきっかけをつかんだ。