Princess Rishi

Princess Rishi (利子内親王; 1197 – 25 January 1251) was an Empress of Japan. She was Empress as the Honorary Mother (准母) of her nephew Emperor Shijō.

Princess Toshiko
Empress consort of Japan
Tenure28 July 1233 – 9 December 1239
Died25 January 1251(1251-01-25) (aged 53–54)
Heian-kyō (Kyōto)
FatherImperial Prince Morisada


She was the daughter of Imperial Prince Morisada (守貞親王; 1179-1223) and thus granddaughter of Emperor Takakura. She was the sister of Emperor Go-Horikawa and Princess Kuniko. In 1221, her brother became Emperor, and their sister Kuniko ceremoniously functioned as his Empress. In 1232, her nephew Emperor Shijō became Emperor, and Princess Rishi was appointed to be his Honorary Mother and elevated to the position of Empress, a ceremonious title which made it possible for the court to have an Empress maintaining the role and position of in court rituals until the Emperor married.

In 1239, she ordained as a Buddhist nun and given the Dharma name Shinseichi (真性智). On the same day she was bestowed the honorary title Shikiken Mon'in (式乾門院).[1]


  1. ^ "式乾門院". コトバンク (in Japanese). The Asahi Shimbun Company. Retrieved 2019-10-13. CS1 maint: discouraged parameter (link)
Japanese royalty
Preceded by
Fujiwara no Shunshi
Empress consort of Japan
Succeeded by
Fujiwara no Kitsushi