Toyotomi Hideyori was the son and designated successor of Toyotomi Hideyoshi, the general who first united all of Japan. His mother, Yodo-dono, was the niece of Oda Nobunaga.

Senhime (千姫), or Lady Sen, was the eldest daughter of the shōgun Tokugawa Hidetada and later the wife of Toyotomi Hideyori. She was remarried to Honda Tadatoki after the death of her first husband. Following the death of her second husband, she later became a Buddhist nun under the name of Tenjuin (天樹院).