Iwasaki Castle

Iwasakijō is located in Iwasaki Township, Nisshin Municipality. It is well known among castle fans for its mogi tenshu (mock-reconstructed main keep). In fact, the reconstructions here represent a complex of mogies which also include a yaguramon (gatehouse) and mock ishigaki (stone walls). Real ruin

History

It is not known exactly when this castle was constructed, but it is was most likely built by Oda Nobuhide (Nobunaga's father) to help protect his Eastern borders. In 1529, Matsudaira Kiyoyasu (Ieyasu's grandfather) attacked Iwasaki Castle and took control. When Kiyoyasu was assassinated in 1535 by one of his retainers, Abe Masatoyo, Ieyasu's father Hirotada ascended to the control of the Matsudaira clan. The family itself withdrew from Iwasaki Castle and placed their retainer Niwa Ujikiyo in charge. Four generations of Niwa ruled for approximately 60 years until the Battle of Sekigahara.

Iwasaki Castle actually fell to the Toyotomi forces led by Ikeda Tsuneoki in the Battle for Iwasaki (1584) during the Battle of Komaki and Nagakute. Niwa Ujitsugu, the castle lord at that time, lost his brother Ujishige and many warriors. In the Battle of Sekigahara, Niwa fought for the Tokugawa and was given lands in modern day Toyota City for his allegiance. Iwasaki Castle was then abandoned.

Field Notes

Iwasakijō is located in Iwasaki Township, Nisshin Municipality. It is well known among castle fans for its mogi tenshu (mock-reconstructed main keep). In fact, the reconstructions here represent a complex of mogies which also include a yaguramon (gatehouse) and mock ishigaki (stone walls). Real ruins of the castle can be found hidden in the treeline to the north of the site where there are deep dry moats and other earthworks.

Profile and gallery updated by ART (2018; visited 2015).

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Gallery

• 

  Gatehouse and keep (mogi)
• 
• 
• 

  Main Keep
• 

  main keep
• 

  Karabori (dry moat)
• 

  Dobashi (earthen bridge) betwen dry moats
• 

  Karabori (dry moat)
• 

  Karabori (dry moat)
• 
• 

  kofun
• 

  museum building

Castle Profile
English Name	Iwasaki Castle
Japanese Name	岩崎城
Founder	Oda Nobuhide
Year Founded	unknown
Castle Type	Hilltop
Castle Condition	Reconstructed main keep
Historical Period	Pre Edo Period
Main Keep Structure	5 levels, 7 stories
Year Reconstructed	1987 (concrete)
Features	main keep
Visitor Information
Access	Nisshin Sta. (Meitetsu Toyota Line); 10 min bus
Hours
Time Required
URL	Castle Website
Location	Nisshin, Aichi Prefecture
Coordinates	35.14539, 137.04212
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Admin
Added to Jcastle	2008
Contributor	ART
Admin Year Visited	Viewer Contributed

2.27

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