徳川斉昭
Tokugawa Yoshinobu was born in Edo as the seventh son of Tokugawa Nariaki, "daimyō" of Mito. Mito was one of the "gosanke", the three branch families of the Tokugawa clan which were eligible to be chosen as "shōgun". His birth name was Matsudaira Shichirōmaro (七郎麻呂) His mother, Princess Arisugawa Yoshiko, was a member of the Arisugawa-no-miya, a cadet branch of the imperial family; through her, he was a third cousin (once removed) of the then-Emperor Ninkō. Shichirōmaro was brought up under strict, spartan supervision and tutelage. While his father Nariaki respected the second Mito Tokugawa Mitsukuni who had sent off the second and younger sons from Edo to Mito to raise them, Shichirōmaro was seven months old when he arrived in Mito in 1838. He was taught in the literary and martial arts, as well as receiving a solid education in the principles of politics and government at Kōdōkan.