Princess Kako of Akishino is the second daughter of the Crown Prince and Crown Princess of Japan and a member of the Japanese imperial family. She is a niece of Emperor Naruhito and the second-eldest grandchild of Emperor Emeritus Akihito and Empress Emerita Michiko.

Fumihito, Crown Prince Akishino is the younger brother and heir presumptive of the Emperor of Japan, Naruhito, and the younger son of Emperor Emeritus Akihito and Empress Emerita Michiko. Since his marriage in June 1990, he has had the title Prince Akishino and has headed his own branch of the imperial family.