Hadanashi Castle

Hadanashijō is an elevated kyokan (residential castle) ruin in Hadanashi Township, Okazaki Municipality. The ruins consist of a flattened ridge terminus with a long, 5m wide, 3m deep horikiri (trench) and dorui (berm) system on the ridge above. There is a narrow terraced band between the dorui and b

History

Hadanashijō was constructed in 1305 by the Ao Clan who were granted a fief in the area by the Ashikaga Shogunate. In 1556 the Okudaira Clan, vassals of the Oda Clan, attacked Hadanashijō but were repelled. Ao Naganobu was the castellan at that time.

In 1560, following the battle of Okehazama, the Matsudaira Clan became hegemonic in Mikawa, and Ao Naganobu, who was not friendly to them, was forced to retire, being replaced by his heir, Ao Nobumori.

During the Mikawa Ikkō-Ikki rebellion of 1563-1564, Ao Nobumori relocated to Mutsunajō, and the Sakai Clan took over Hadanashijō. The castle is thought to have been abandoned not long after.

Field Notes

Hadanashijō is an elevated kyokan (residential castle) ruin in Hadanashi Township, Okazaki Municipality. The ruins consist of a flattened ridge terminus with a long, 5m wide, 3m deep horikiri (trench) and dorui (berm) system on the ridge above. There is a narrow terraced band between the dorui and bailey space. There is a signboard and monument for the castle in the former bailey.

Gallery

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  Horikiri (trench)
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Castle Profile
English Name	Hadanashi Castle
Japanese Name	秦梨城
Alternate Names	Hatanashijō
Founder	Ao Clan
Year Founded	1305
Castle Type	Mountaintop
Castle Condition	Ruins only
Historical Period	Pre Edo Period
Artifacts	Horikiri, Dorui, Kuruwa
Features	trenches
Visitor Information
Access	I cycled from Okazaki. 'Hello Cycle' rental bicycles are available in Okazaki.
Hours	24/7 free; mountain
Time Required	20 minutes
URL	Castle Website
Location	Okazaki, Aichi Prefecture
Coordinates	34.9525, 137.24825
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Admin
Added to Jcastle	2023
Contributor	ART
Admin Year Visited	Viewer Contributed
Friends of JCastle
Jōkaku Shashin Kiroku
Kojō to Yachō
Yogo
Aichi Shiro

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