The castle was surrounded by the 15,000 soldiers of the West squad including Motoyasu MORI and Muneshige TACHIBANA in October 13, 1600, which was the beginning of the battle over the castle.
9月7日(旧暦)より毛利元康・立花宗茂ら西軍1万5000に城を囲まれ攻防戦が開始された。