Atsushiba Yashiki (Koma)

History

Atsushiba-yashiki in the historical Koma County is said to be the birthplace of the Ogasawara Clan, a noteworthy clan who would go on to dominate Shinano Province. From 1185, at the dawn of the feudal era, Nagakiyo, the second son of Kagami Tômitsu, took charge of the Ogasawara-maki, a ranch used by Imperial government to breed horses for war, and, at the start of the Kamakura period, began the Ogasawara Clan here, building a manor hall known as the Atsushiba-yashiki. It is also known as the Ogasawara-yashiki. The neighbourhood today, located in Akeno Township of Hokuto Municipality, is also called Ogasawara.

Visit Notes

Ruins of Atsushiba-yashiki are said to include dorui (earthen ramparts) and kuruwa (baileys), but the site today is covered in rice paddies so it can be difficult to distinguish the terracing for fields from embankments which were once fortified. However, the most likely area surrounds the shrine (Yasaka-jinja); the terraces and mounds around the paddies are tall. Fields to the south and west of the shrine stand out as being possible bailey sites.

Gallery

Dorui

Castle Profile
English Name	Koma Atsushiba Yashiki
Japanese Name	巨摩厚芝屋敷
Alternate Names	Ogasawara-yashiki
Founder	Ogasawara Clan
Year Founded	Kamakura Period
Castle Type	Fortified Manor
Castle Condition	Ruins only
Historical Period	Pre Edo Period
Artifacts	Dorui, Kuruwa
Features
Visitor Information
Access	Nearest station is Shinpu Station on the Chūō Main Line
Visitor Information	Fields
Time Required	20 minutes
Location	Hokuto, Yamanashi Prefecture
Coordinates	35° 45' 1.91" N, 138° 27' 4.28" E
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Admin
Added to Jcastle	2022
Contributor	ART
Admin Year Visited	Viewer Contributed
Friends of JCastle
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