Mizuno Tadakiyo

Mizuno Tadakiyo
水野忠精
Mizuno Tadakiyo
Monarchs	Shōgun Tokugawa Ieyoshi Tokugawa Iesada Tokugawa Iemochi
1st Daimyō of Yamagata Domain
In office 1845–1866
Preceded by	Akimoto Yukitomo
Succeeded by	Mizuno Tadahiro
1st Daimyō of Hamamatsu Domain
In office 1845–1845
Preceded by	Mizuno Tadakuni
Succeeded by	Inoue Masaharu
Personal details
Born	(1833-02-05)February 5, 1833
Died	May 8, 1884(1884-05-08) (aged 51) Tokyo, Japan
Spouse	daughter of Inoue Masaharu of Tanagura Domain
Parent	Mizuno Tadakuni (father)

Mizuno Tadakiyo (水野 忠精, February 5, 1833 – May 8, 1884) was a daimyō during Bakumatsu period Japan, who served as chief senior councilor (Rōjū) in service to the Tokugawa shogunate.

Mizuno Tadakiyo was the eldest son of Mizuno Tadakuni, the daimyō of Hamamatsu Domain and chief senior councilor (Rōjū) in service to the Tokugawa shogunate. After the failure of the Tenpō Reforms, Tadakuni was forced into retirement and exile, and turned the leadership of the Mizuno clan and the position of daimyō of Hamamatsu Domain to Tadakiyo in 1845.

However, the same year, Tadakuni was reassigned to Yamagata Domain (50,000 koku) in Dewa Province. After the pardon of his father in 1851, Tadakuni’s fortunes improved. Within the shogunal administration, he received the post of Jisha-bugyō (Commissioner of Shrine and Temples) and wakadoshiyori (Junior Councilor). In 1862, he became a Rōjū in the service of Shōgun Tokugawa Iemochi.

As Rōjū, he worked with Oguri Tadamasa in the construction of Yokosuka Naval Arsenal as part of the Tokugawa shogunate’s efforts to modernize Japan’s military.

He retired from public life in 1866 on the death of Shōgun Tokugawa Iemochi, and was succeeded at Yamagata by his son Mizuno Tadahiro. Mizuno Tadakiyo was married to a daughter of Inoue Masahari, a fellow Rōjū and daimyō of Tanagura Domain.

• Papinot, Edmond. (1906) Dictionnaire d'histoire et de géographie du japon. Tokyo: Librarie Sansaisha...Click link for digitized 1906 Nobiliaire du japon (2003)
• The content of much of this article was derived from that of the corresponding article on Japanese Wikipedia.