Tōshōin

Tōshōin (洞松院, born in the 1460s) or Akamatsu Tōshōin was a Japanese woman from the Sengoku period. She was the daughter of Hosokawa Katsumoto, sister of Hosokawa Masamoto, and wife of Akamatsu Masanori. Tōshōin was a de facto Daimyo who supported the Akamatsu clan as a guardian of Akamatsu Yoshimura. She took control of the clan in fact as the leader in 1521, after Yoshimura was assassinated.