
Saku
Fort de Tatsuoka
Bâtisseur, daimyō d'Okutono/Tanoguchi
→Daimyō of Okutono, then of Tanoguchi (Tatsuoka) · Wakadoshiyori · Rōjū · Viscount (1884) · Count (1907)
Matsudaira Norikata (1839-1910), known after 1869 as Ōgyū Yuzuru, was the last daimyō of the Okutono domain and then of Tanoguchi (Tatsuoka), and one of the senior officials of the Tokugawa shogunate at the end of the Edo period. A proponent of Western-style military modernisation and French methods, he had the Tatsuoka star fort (1864-1867) built at Taguchi, in present-day Saku city, one of only two bastioned fortifications of this type in Japan. Having sided with the new regime during the Boshin War, he then served the Meiji government, designing the Japanese system of decorations and co-founding the Hakuaisha, forerunner of the Japanese Red Cross.
Heading a small domain divided between Mikawa and Shinano, Norikata stood out in the final years of the shogunate for his interest in Western military techniques. He trained peasants of his domain using methods inspired by the West, then, once rōjū, advocated the use of French instructors and the creation of an army of conscripts.
Fort de TatsuokaBorn in Okutono, in Mikawa Province.
Appointed Ōbangashira and then wakadoshiyori; obtains the transfer of the seat of his domain from Okutono to Tanoguchi, in Shinano.
Construction of the Tatsuoka star fort at Taguchi (Saku), at a cost of approximately 40,000 ryō.
Becomes rōjū; advocates French military advisers and an army of conscripts.
Refuses to fight the imperial forces during the Boshin War; in 1869, adopts the name Ōgyū.
Joins the Meiji government, tasked with studying foreign decorations and designing a Japanese system.
Co-founds the Hakuaisha with Sano Tsunetami, forerunner of the Japanese Red Cross.
Made a viscount within the kazoku peerage system; raised to the rank of count in 1907.
Died on 26 January.
The transfer of his seat to Tanoguchi, decided in 1863, gave rise to Tatsuoka Fort, laid out in a star shape like Hakodate's Goryōkaku. For lack of resources, the structure remained a lightly armed jin'ya, but it bears witness to the spread of European fortification models in Japan. The city of Saku now presents his life at the site's visitor centre.
Cette synthèse croise plusieurs sources pour documenter les lieux, événements et relations historiques.