Sakamoto Ryōma - Wikipedia

akamoto Ryōma (坂本 龍馬, January 3, 1836 – December 10, 1867) was a Japanese prominent figure in the movement to overthrow the Tokugawa shogunate. He was active for most of the Bakumatsu.

One of his most noted accomplishments during this period was the negotiation of peace between Chōshū (present day Yamaguchi Prefecture) and Satsuma (present day Kagoshima Prefecture), two powerful provinces that had long been hostile to each other. He then united them against the Bakufu, the government of the Tokugawa shōgun.

Ryōma frequently used the alias Saitani Umetarō (才谷梅太郎) during this period, as he was often hunted by the Bakufu supporters, such as members of the Shinsengumi. He was ultimately attacked and murdered before the Boshin War, along with his companion Nakaoka Shintarō, at an inn in Kyoto.