Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
, who ruled
Yokosuka Domain
was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Tōtōmi Province. It was centered at Yokosuka Castle in what is now the Matsuo district of the city of Kakegawa in Shizuoka Prefecture.Tōtōmi Province.
Tadamitsu was the second son of Kyōgoku Takatoyo, daimyō of Marugame Domain in Sanuki Province. As Nishio Tadanao, had no heirs, he adopted his nephew in 1729. In 1731, Tadamitsu received the courtesy title of ''Mondo no Shō'' (主水正) along with junior 5th court rank, lower grade (''ju go i no ge'' 従五位下). Tadamitsu became head of the Nishio clan in 1760, on Tadanao's death, and was appointed '' Sōshaban'' (master of ceremonies) in the administration of the Tokugawa shogunate. He retired in 1782, and was succeeded by his son Tadayuki.
Tadamitsu died in
Edo
Edo ( ja, , , "bay-entrance" or "estuary"), also romanized as Jedo, Yedo or Yeddo, is the former name of Tokyo.
Edo, formerly a ''jōkamachi'' (castle town) centered on Edo Castle located in Musashi Province, became the ''de facto'' capital of ...
in 1789, at age 74. His grave is located at the Nishio clan temple of Ryumin-ji in modern Kakegawa, Shizuoka.