Tosa Province

The remainder of the province and controlled by the Motoyama, Aki, Kira, Tsuno, Chōsokabe and the Kosokabe clans.

Under the Yamauchi, Kōchi Castle was built and the jōkamachi of Kochi city became the capital of the province.

During the Bakumatsu period, many prominent people were active in the overthrow of the shogunate and establishing the early Meiji government, including Sakamoto Ryōma, Nakaoka Shintarō, Itagaki Taisuke, Gotō Shōjirō.

[1] Per the early Meiji period Kyudaka kyuryo Torishirabe-chō (旧高旧領取調帳), an official government assessment of the nation’s resources, the province had 348 villages with a total kokudaka of 494,087 koku.

The Imperial Japanese Navy battleship Tosa, lead ship of its class, was named after the province.