When Nobunaga noticed that Yoshikane SHIBA, whom he helped become shugo, planned to exile Nobunaga with the Ishibashi clan of the Shiba family and the Kira clan, a branch family of the Ashikaga clan as well as the Shiba clan, he exiled Yoshikane.
新たに守護として擁立した斯波義銀が、斯波一族の石橋氏と、同じく足利氏一門にあたる吉良氏と通じて信長の追討を画策していることが発覚すると、信長は義銀を追放した。