She was best known for being a potential enemy of her nephew, Masamune, participating in several campaigns against expansion of the Date clan in the region of Ōshū.

After Moriyoshi and Yukichika death, Onamihime became the owner of the Sukagawa castle, chief representative of the Nikaido clan and took nun name of Daijou-in.

In 1588, Onamihime allied again with Ashina and Sōma clan to counter Date Masamune in Battle of Koriyama.

[3] Masamune saved his aunt Onamihime's life, and had her escorted safely to live in retirement at Suginome Castle.

Following the defeat of the Western Army by the Tokugawa Ieyasu Eastern Forces, the Satake Clan was allowed to continue existing, but was punished.