Wife of the 14th Shogun, TOKUGAWA Iemochi, and Emperor Ninko’s eighth daughter. In 1851, at the age of 6, she was engaged to Imperial Prince ARISUGAWA Taruhito. But, she married TOKUGAWA Iemochi for the Kobu-gattai (reconciliation between the imperial court and the shogunate) in 1862. After the death of Iemochi in 1866, she entered the Buddhist priesthood and called herself Seikanin-no-miya. During the Boshin War, she worked from behind the scenes to stop the all-out attack on Edo and to ensure the survival of the Tokugawa family. In 1877, she died of illness while staying in Hakone to treat her beriberi.