Asonuma Castle




The Asonuma clan were a branch of the Sano clan with holdings throughout the area. Asonuma castle was a small castle with a single earthen embankment and trench around the square compound. It was abandoned in 1614 when the Sano were reassigned.

Visit Notes

Only a small part of the trench and embankment behind the Asanuma Hachimangu shrine remain today.

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  • Trench
  • Entrance to the shrine. The trench is in the back.
  • Trench
  • No entrance to the trench
  • Trench
  • Trench
  • Flag at the castle site

Castle Profile
English Name Asonuma Castle
Japanese Name 阿曽沼城
Founder 1182
Year Founded Asanonuma clan
Castle Type Flatland
Castle Condition Ruins only
Historical Period Pre Edo Period
Features trenches
Visitor Information
Access Sano Sta (Tobu Sano Line) 15 min walk
Visitor Information
Time Required 10 mins
Location Sano, Tochigi Prefecture
Coordinates 36° 18' 39.38" N, 139° 35' 14.03" E
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Added to Jcastle 2017
Admin Year Visited 2017
Admin Visits November 25, 2017

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