Tosa Domain

Kōchi Domain (1868–1871) 高知藩 Tosa Domain (1601–1868) 土佐藩
Domain of Japan
1601–1871
Kōchi Castle in Kōchi
Flag[a] Mon of the Yamauchi
Capital	Kōchi Castle
Area
• Coordinates	36°33′52″N 136°39′33″E / 36.564317°N 136.659228°E / 36.564317; 136.659228
Government
Daimyō
• 1601-1605	Yamauchi Kazutoyo (first)
• 1859-1871	Yamauchi Toyonori (last)
Historical era	Edo period
• Established	1601
• Abolition of the han system	1871
Contained within
• Province	Tosa
Today part of	Kōchi Prefecture

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Location of Kōchi Castle

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Tosa Domain (Japan)

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The Tosa Domain (土佐藩, Tosa-han) was a feudal domain under the Tokugawa shogunate of Edo period Japan, controlling all of Tosa Province in what is now Kōchi Prefecture on the island of Shikoku. It was centered around Kōchi Castle, and was ruled throughout its history by the tozama daimyō Yamauchi clan. Many people from the domain played important roles in events of the late Edo period including Nakahama Manjirō, Sakamoto Ryōma, Yui Mitsue, Gotō Shōjirō, Itagaki Taisuke, Nakae Chōmin, and Takechi Hanpeita. Tosa Domain was renamed Kōchi Domain (高知藩, Kōchi-han) during the early Meiji period until it was dissolved in the abolition of the han system in 1871 and became Kōchi Prefecture.

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