Shouunji Fort


ShouunjiRui (4).JPG


Shōunji-rui was one of a ring of fortified annexes surrounding the residence of Mizukami Mondo. Thought to have been originally built around 1581 by vassals of Takeda Katsuyori, these forts were used as a stronghold of the Tokugawa against the Hōjō following the Honnōji Incident in 1582. Many vassals of the Takeda were hastily relocated to this area with the construction of Shinpujō, so there are a large number of residences and forts. Shōunji, the temple on the site today, also apparently dates to 1581, and so the temple may have been fortified from the beginning, or the fort site was later converted into a temple in the Edo period. The last remnants of the fort's ramparts were bulldozed in the late Heisei period (2010s).

Visit Notes

Shōunji-rui is a fort site in Nakada Township which has a cluster of such sites. I looked very hard for ruins but found none. Whilst some dorui (earthen ramparts) survived here up until relatively recently, and castle blogs picture remnants of them, they are now completely destroyed and paved over. 'Rui' refers to dorui, earthen fortifications, and describes a small fort or fortified residence like a yashiki or yakata.

  • Former site of dorui

Castle Profile
English Name Shouunji Fort
Japanese Name 松雲寺塁
Founder Mizukami Clan
Year Founded 1581
Castle Type Fortified Manor
Castle Condition Ruins only
Historical Period Pre Edo Period
Visitor Information
Access Shinpu Station on the Chūō Main Line; 16 minute walk
Visitor Information 24/7 free; temple
Time Required 10 minutes
Location Nirasaki, Yamanashi Prefecture
Coordinates 35° 44' 41.57" N, 138° 26' 20.58" E
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Added to Jcastle 2023
Contributor ART
Admin Year Visited Viewer Contributed
Friends of JCastle
Jōkaku Hōrōki
Oshiro Tabi Nikki

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