板垣退助
Following the Meiji Restoration, after a brief period in prison, he was released due to a favor he had once done for Itagaki Taisuke, and was hired by the new Meiji government as an infantry warfare instructor for the Tosa Domain. He also taught English in Tōkyō. Among his students were Takamine Hideo and Shiba Shirō, the sons of former Aizu "samurai" who would later become famous in academia.