Tadaoki showed a will of vassalage to the Tokugawa family by disinherit Tadataka who opposed the order, and made his third son Naiki (Tadatoshi), who had been presented at Ieyasu as a hostage, the successor.
これに反発した忠隆を廃嫡・勘当、家康に人質として差し出していた三男・内記（忠利）を跡継ぎとし、徳川家への臣従の意思を表した。