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).

Tokugawa Ieyasu was the founder and first shōgun of the Tokugawa shogunate of Japan, which ruled from 1603 until the Meiji Restoration in 1868. He was one of the three "Great Unifiers" of Japan, along with his former lord Oda Nobunaga and fellow Oda subordinate Toyotomi Hideyoshi. The son of a minor daimyo, Ieyasu once lived as a hostage under daimyo Imagawa Yoshimoto on behalf of his father. He later succeeded as daimyo after his father's death, serving as ally, vassal and general of the Oda clan, and building up his strength under Oda Nobunaga.