Emperor Kōkaku
Yoshiko was the only child of former Emperor Go-Momozono. She formally became Empress consort ("chūgū") to Emperor Kōkaku at age 15 after she was engaged to the new Emperor by former empress Go-Sakuramachi. The couple had two sons but both died before reaching adulthood. Yoshiko eventually functioned as an official mother to the heir who would become Emperor Ninkō. In 1816, Emperor Ninkō granted Empress Yoshiko the title of Empress Dowager after Emperor Kōkaku abdicated. She later became a Buddhist nun after her husband died, and changed her name to in 1841.