In the generation of Katsuhisa, a war against Motosuke SHO (Izu no kami [Governor of Izu Province]) broke out (the great battle in Bicchu), and the Shugo family of Bicchu won in the battle.
勝久の代に、庄元資（伊豆守）との争乱が勃発し（備中大合戦）、これは備中守護家が勝利した。