Viscount was a Japanese samurai of the late Edo period

Edo period

The , or , is a division of Japanese history which was ruled by the shoguns of the Tokugawa family, running from 1603 to 1868. The political entity of this period was the Tokugawa shogunate....

 who served as daimyō of Aizu Domain from 1868-69. Born the son of Tokugawa Nariaki

Tokugawa Nariaki

Tokugawa Nariaki was a prominent Japanese daimyo who ruled the Mito domain and contributed to the rise of nationalism and the Meiji restoration.- Clan leader :...

 of Mito

Mito Domain

was a prominent feudal domain in Japan during the Edo period. Its capital was the city of Mito, and it covered much of present-day Ibaraki Prefecture. Beginning with the appointment of Tokugawa Yorifusa by his father, Shogun Tokugawa Ieyasu, in 1608, the Mito branch of the Tokugawa clan...

, he was adopted by Matsudaira Katamori

Matsudaira Katamori

was a samurai who lived in the last days of the Edo period and the early to mid Meiji period. He was the 9th daimyo of the Aizu han and the Military Commissioner of Kyoto during the Bakumatsu period. During the Boshin War, Katamori and the Aizu han fought against the Meiji Government armies, but...

 as successor. After a year of serving as daimyō, he resigned, allowing Katamori's birth son Keizaburō (Kataharu

Matsudaira Kataharu

Viscount was a Japanese samurai of the late Edo period who served as the daimyō of Tonami han in the early Meiji Era. Born the eldest son of Matsudaira Katamori, he succeeded Katamori's adopted son Nobunori in 1869...

) to assume headship. Nobunori then became the head of the Matsudaira family of Matsukawa, and spent time studying abroad, in France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

.