Ōtawara Domain

Ōtawara Domain (大田原藩, Ōtawara-han^?) was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Shimotsuke Province (modern-day ), Japan. It was centered on Ōtawara Castle in what is now part of the city of . Ōtawara was ruled through all of its history by the Ōtawara clan.

The Ōtawara clan was a branch of the Nasu clan, and was one of the seven Gōzoku samurai bands of the Nasu region of northern Shimotsuke Province. In 1590, when Toyotomi Hideyoshi called upon the Nasu clan to assist in his plan to destroy the Hōjō clan at the Battle of Odawara, the Nasu refused his summons; however, Ōtawara Harukiyo went against his overlord and pledged allegiance to Hideyoshi. In return, he was awarded a 7,000 koku holding. In 1600, Ōtawara Harukiyo pledged his forces to Tokugawa Ieyasu and fought a rear-guard action against the Uesugi clan while Ieyasu was at the Battle of Sekigahara. In return for this action, he was awarded another 5,000 koku and was thus admitted into the ranks of the daimyō.

The Ōtawara continued to rule these holdings until the end of the Tokugawa Shogunate. The 3rd daimyo, Ōtawara Takakiyo, gave 1,000 koku to his younger brother, reducing the domain to 11,000 koku. During the Bakumatsu period, the 12th daimyo, Ōtawara Hirokiyo, established a domain academy. The final daimyo, Ōtawara Kazukiyo sided with the imperial forces in the Boshin War, and his castle attacked by pro-Tokugawa Aizu Domain in May 1868. After the Meiji restoration, he was made a viscount (shishaku) in the kazoku peerage system. After the abolition of the han system in July 1871, Ōtawara Domain became part of Tochigi Prefecture.

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