Koromo Domain

Koromo Domain (挙母藩, Koromo han) was a feudal domain under the Tokugawa shogunate of Edo period Japan, located in Mikawa Province (modern-day eastern Aichi Prefecture), Japan. It was centered on Koromo Castle in what is now the city of Toyota, Aichi.

A fortification was built near the present site of Koromo Castle during the Kamakura period, and the area was contested in the Sengoku period between the Imagawa clan and the Oda clan. After the establishment of the Tokugawa shogunate, the Miyake clan (formerly of Tahara were allowed to return to Mikawa and were assigned a 10,000 koku domain on the banks of the Yasaku River. In 1600, Miyake Yasusada built a jin'ya fortified residence approximately a kilometer away from the site of the original fortification, and planted sakura trees all around it. The residence was nicknamed "Sakura-jō " (桜城).

The Miyake moved the seat of their domain to Kameyama Domain in Ise Province in 1619, but returned to Koromo from 1636–1674. After 1674, they were finally allowed to return to their ancestral Tahara Domain. Koromo then became tenryō territory ruled directly by the Tokugawa shogunate through appointed daikan administrators to 1688.

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