Asaba Castle

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Shirakura was a minor lord in the Musashi region who fled before the pressure of the Hojo to join forces with Nagao Kagetora (Uesugi Kenshin). As Takeda Shingen grew in strength and took over the region Shirakura joined with the Takeda. As the Takeda weakened, Shirakura allied with the Hojo. During the Siege of Odawara, Shirakura Shigeie holed up in Odawara Castle leaving Asaba Castle to his younger brother Shigetaka. Shigetaka surrendered to the huge combined forces of Maeda Toshiie and Uesugi Kagekatsu in 1590.

Visit Notes

There is a surprising amount of earthworks and trenches remaining for this little castle surrounded by fields and development. Nearby Niiya Castle was completely developed over.

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  • Wooden bridge and honmaru trench
  • Outside the entrance
  • Castle seen from the outside
  • Trail to the Sasa Bailey.
  • Bridge across the trench
  • Bridge across the trench
  • Fake little lookout tower.
  • View from inside
  • Bridge to the Honmaru bailey
  • Honmaru moat
  • Bridge across the trench to the Honmaru bailey
  • Honmaru trench
  • Honmaru trench
  • Bridge to the Honmaru from the Ninomaru
  • Earthen Bridge from the Honmaru Trench to the Ninomaru Bailey.
  • View of the Honmaru from the Ninomaru
  • Ninomaru Entrance
  • Ninomaru Entrance
  • Ninomaru Entrance
  • Earthen bridge between the Ninomaru and Honmaru
  • Earthen bridge between the Ninomaru and Honmaru
  • Ninomaru Bailey
  • Ninomaru and earthen embankment
  • Honmaru Trench
  • Honmaru Trench
  • Small bridge over part f the honmaru trench
  • Wooden bridge and honmaru trench
  • Honmaru Trench
  • Honmaru trench
  • View from the Sasa Bailey
  • Map
  • Map

Castle Profile
English Name Asaba Castle
Japanese Name 麻場城
Alternate Names Shirakura-jo
Founder Shirakura Clan
Year Founded 1469-1487
Castle Type Mountaintop
Castle Condition Ruins only
Historical Period Pre Edo Period
Features bridges, trenches
Visitor Information
Access Joshuniiya Sta (Joshin Dentetsu Line), walk 20 mins
Visitor Information Park, open anytime
Time Required 30 mins
Location Kanra, Gunma Prefecture
Coordinates 36° 14' 51.43" N, 138° 56' 33.32" E
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Added to Jcastle 2016
Admin Year Visited 2015
Admin Visits October 18, 2015

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