Ōtomo clan
In 1586 the Shimazu clan marched with his troops to conquer Kyushu, attacked the Ōtomo clan in the Bungo province and the Tachibana Castle in the north. The Tachibana clan fought back against Shimazu. In Otomo Family Document (大友家文書録), describes that when the commanders of the Shimazu army arrived near Tachibana castle, Ginchiyo armed the women with firearms and defended the castle gates.