Kisai Castle, Medieval castle ruins in Kazo, Japan
Kisai Castle is a medieval fortification in Kazo featuring a two-part defensive structure with an outer and inner bailey. The site covers a rectangular area enclosed by earthen embankments, with the main residence located on the western portion.
The fortress was built in the 16th century as a defensive stronghold surrounded by ponds and water barriers. A significant military engagement in 1563 marked a turning point in its existence.
The name reflects the water-dominated landscape that once surrounded the fortification. This connection to water remains visible in the terrain, shaping how people understand the site today.
The site is relatively easy to reach and the ground is accessible, though some areas can be uneven. Wearing comfortable footwear is recommended, and visitors should take care during rain as the earthen slopes can become slippery.
Excavations at this location uncovered a remarkably intact decorated helmet from the Sengoku period. This rare find offers insight into the craftsmanship and status of the warriors who lived here.
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