Tsugaru clan
She was born at Tsugaru's family home in Tokyo, she is the fourth daughter of Count Yoshitaka Tsugaru (1907–1994), the last representative of the Tsugaru clan and adopted son of the "daimyō" of the Tsugaru Domain (present-day Hirosaki, Aomori). Yoshitaka Tsugaru was originally from the Owari branch of the Tokugawa clan. He was also a member of the aristocracy created by the Meiji Restoration ("kazoku").