On the eve of the Onin War, a conflict occurred over the succession to the position of family head in the Buei family, the main branch of the Shiba family, after the death of Yoshitake SHIBA.
応仁の乱前夜、斯波家嫡流の武衛家では斯波義健没後、家督相続をめぐる争いが起こった。