お家騒動
As Tamenobu's second son, Nobukata, had in 1597, the title went to his third son, Nobuhira. This immediately resulted in an "O-Ie Sōdō", as many retainers felt that Nobutake's son was the legitimate heir. However, the Tokugawa shogunate intervened and proclaimed Nobuhira as the next "daimyō".