Koshimizu Castle

Also known as 小清水城 or 腰水城. Located at Nishinomiya City, Hyōgo Prefecture. There are no standing structures; only a stone marker at Taisha Elementary School indicates the castle site.

History

Koshimizu Castle (越水城) was built in 1516 by Kawarabayashi Masayori as a hilltop fortification. The castle guarded the West Country Road and changed hands multiple times during conflicts between the Hosokawa factions. It later served as the base of Miyoshi Nagayoshi during his expansion in the Kansai region. After Oda Nobunaga’s forces entered the area, the castle lost its strategic value and was abandoned. Today, the site is occupied by Taisha Elementary School, with a stone monument marking the location.

Field Notes

Also known as 小清水城 or 腰水城. Located at Nishinomiya City, Hyōgo Prefecture. There are no standing structures; only a stone marker at Taisha Elementary School indicates the castle site.

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Gallery

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Castle Profile
English Name	Koshimizu Castle
Japanese Name	越水城
Alternate Names	小清水城, 腰水城
Founder	Kawarabayashi Masayori
Year Founded	1516
Castle Type	Hilltop
Castle Condition	Ruins only
Historical Period	Pre Edo Period
Features
Visitor Information
Access
Hours
Time Required
Location	Nishinomiya, Hyogo Prefecture
Coordinates	34.74565, 135.33681
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Admin
Added to Jcastle
Contributor	Eric
Admin Year Visited	2025
Admin Visits	October 11, 2025

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