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Isawa Castle
胆沢城
Ōshū, Iwate Prefecture, Japan
Isawa Castle-1
 site of Isawa Castle
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胆沢城
Coordinates 39°10′47.02″N 141°08′6.0″E / 39.1797278°N 141.135°E / 39.1797278; 141.135
Type jōsaku-style Japanese castle
Site information
Open to
the public
yes
Site history
Built 802 AD
Built by Sakanoue no Tamuramaro
In use early Heian period
Demolished unknown

Isawa Castle (胆沢城 Isawa-jō?) was an early Heian period jōsaku-style Japanese castle located in what is now part of the city of Ōshū, Iwate in the Tōhoku region of far northern Honshu, Japan. The site was proclaimed a National National Historic Site in 1922.

History[]

In the late Nara period, after the establishment of a centralized government under the Ritsuryō system, the Yamato court sent a number of military expeditions to what is now the Tōhoku region of northern Japan to bring the local Emishi tribes under its control.[1] The Emishi were able to successfully resist the Japanese for several decades; however, in 802 AD, the Chinjufu Shogun Sakanoue no Tamuramaro led an expedition with 4000 troops from the ten provinces of eastern Japan (Suruga, Kai, Sagami, Mushashi, Kazusa, Shimosa, Hitachi, Shinano, Kozuke and Shimotsuke) and built Isawa Castle as his stronghold within Emishi territory in the valley of the Kitakami River. With the defeat of the Emishi chieftain Aterui, many of the Emishi tribes in the Shiwa District submitted to Japanese rule. In 803 AD, Shiwa Castle was established in what is now part of the city of Morioka to serve as an administrative center of the imperial government. However, the site was prone to flooding, and in 811 AD, and Shiwa Castle was abandoned in favor of Tokutan Castle approximately ten kilometers to the south.[2] The garrison at Isawa Castle was reduced to 700 men in 815 AD, of whom many were local Emishi in the service of the Yamato court. By the middle of the 9th century, mention of Isawa Castle disappears from the historical record, although it may have existed in some form until the Gosannen War of 1083.

See also[]

References[]

  1. Shively, Donald H.; McCullough, William H. (1999). Cambridge History of Japan vol. II (p.31f.). Cambridge University Press. 
  2. "志波城跡 しわじょうあと" (in Japanese). Cultural Heritage Online. Agency for Cultural Affairs. http://bunka.nii.ac.jp/heritages/detail/171335. Retrieved 25 December 2016. 

External links[]

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The original article can be found at Isawa Castle and the edit history here.
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