In the Battle of Usubagahara, which was the all-out war between the Utsunomiya clan and the Nasu clan broke out on April 24, 1585, her husband Tokinari YAMADA died in the battlefield and Yamada-jo Castle where she and her husband lived was defeated by the army of the Nasu clan.
天正13年（1585年）3月25日、宇都宮氏と那須氏が総力を挙げて激突した薄葉ヶ原の戦いが勃発すると、夫の辰業はこの戦いにおいて討死し、居城の山田城は那須勢に攻められ落城する。