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Isawa Castle

Also known as Isawa-jō

Isawa Castle was a fortress built in 802 by Sakanoue no Tamuramaro in the Kitakami basin, in present-day Ōshū, Iwate Prefecture, during the wars against the Emishi. Soon afterwards it replaced Taga Castle as headquarters of the Chinjufu, the court's military command in the north. Excavations have uncovered its earthen walls and government buildings.

Isawa Castle
Image: Saigen Jiro · CC0 · Wikimedia Commons

Mentioned in 1 state history

Emishi

See also

Cite this entry
APA
The Epoch Institute. (2026). Isawa Castle. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/isawa-castle
MLA
“Isawa Castle.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/isawa-castle. Accessed .
Chicago
The Epoch Institute. “Isawa Castle.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/isawa-castle.
Harvard
The Epoch Institute (2026) ‘Isawa Castle’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/isawa-castle (Accessed: ).

Last reviewed October 2026Random entry ↻