Nobunobu Hitotsubashi

He is part of the Hitotsubashi faction that opposed the Tokugawa faction that was in control of the government until the 14th shogun, Tokugawa Shige Shige, was assassinated. When the Tendoshuu step in to establish the Hitotsubashi faction as the new leaders of the government, Nobu Nobu becomes the 15th shogun.