Tosa Province

Tosa (土 佐 国Japanese, Tosa no kuni ), also Doshu (土 州) was an old province on the island of Shikoku in Japan. It corresponds to the present-day Kōchi Prefecture.

Between 1470 and 1573 the province was after the Hosokawa had lost all authority, of the Tosa Ichijō (土 佐 一条 氏), a branch of the highly aristocratic Ichijō dominated. The lateral line is descended from Ichijō Norifusa. Their last family head Ichijō Kanesada (一条 兼 贞; 1543-85 ) lost by 1568 land and power to his vassals Chosokabe Motochika. Whose rule was again destroyed by Toyotomi Hideyoshi 's campaign in 1585.

Yamanouchi Kazutoyo (1546-1605) fought on the side of Tokugawa Ieyasu, in 1600 for the Tosa fief entrusted him. The related income of 242,000 koku he was thus one of the great daimyo. - His descendant Yamanouchi Yodo (1827-1872) belonged to but then sharpest advocates the abolition of the shogunate and the restoration of the Tennō in its ancient rights. The most famous samurai of the Tokugawa opponents of the Tosa Han, Sakamoto Ryoma, who was murdered in 1867 on the instructions of the shogunate, is revered to this day.

Tosa is famous for its named after the province of Tosa dogs (土 佐 犬Tosa inu ), an intersection, among other things, Bulldog, Mastiff and native breeds.

Tosa is also the namesake of the Tosa Nikki (土 佐 日记), one diary novel by Ki no Tsurayuki of 935, the first significant work of Japanese diary literature. It describes the return of the governor of Tosa - Ki no Tsurayuki itself - in the then capital of Kyoto from the perspective of a maid of honor of Entourage.

Tosa is still the name of a city in the center of Kōchi Prefecture with about 30,000 inhabitants.