, born on 4 June 1923, is a member of the Imperial House of Japan as the widow of Takahito, Prince Mikasa, the fourth son of Emperor Taishō and Empress Teimei. The Princess is the last surviving paternal aunt of the present emperor, Akihito. She is the oldest member of the Imperial Family, and the only living member who was born in the Taishō period during the reign of her father-in-law.