Emperor Go-Mizunoo
After Ieyasu's death in 1616, Hidetada took control of the "bakufu". He strengthened the Tokugawa hold on power by improving relations with the Imperial court. To this end he married his daughter Kazuko to Emperor Go-Mizunoo. The product of that marriage, a girl, eventually succeeded to the throne of Japan to become Empress Meishō. The city of Edo was also heavily developed under his reign.