Get to know the castle
Castle at a glance
- Site & layout
- Medieval castle of hill, earthen ramparts and moats
- Origins
- Established as a base around the early fourteenth century; expanded in the sixteenth
- Builders & patrons
- The Kono clan of Iyo
- Other names
- —
- What remains today
- Inner and outer moats, earthen banks and excavated residential remains
THE STORY
The story behind the walls
The Kono clan is thought to have moved its base here in the early fourteenth century. The castle became one of medieval Iyo’s political centres. In the sixteenth century, an outer moat enlarged its defended area. After its military role ended, the grounds became Dogo Park. Excavation has revealed evidence of life within the castle, now interpreted through remains and displays.
LAYOUT & ARCHITECTURE
Read the landscape and the buildings.
A central hill forms the core of a castle enclosed by moats and earthen banks. Terrain and earthworks provided defence rather than the tall walls and keep typical of later castles. Exploring both moat circuits and interior flat ground helps distinguish defensive and residential spaces.
A CLOSER LOOK
Details worth a closer look.
Double moats and banks
Moats and earthen banks around the hill trace the extent of the castle. Compared with a stone-walled castle, it explains defence through earth and water.
A castle shaped by terrain
The castle used the central hill and extended its defences across the surrounding ground. Compare the elevated ground with the flat area below to read the layout.
Yuzuki Castle Museum
Displays and excavated objects introduce the Kono clan and life inside the castle. The excavated objects gain context when paired with a walk around the remains.
THROUGH THE YEARS
A short timeline
- Around the early fourteenth century
The Kono are thought to establish their base here.
- Sixteenth century
The outer moat enlarges the castle.
- Modern era
The castle site becomes Dogo Park.
BEFORE YOU GO
A note before you go.
Combine the outdoor remains with a museum visit for context. Check the official calendar for museum closures.
Information checked: 27 September 2026
Sources & official information
Some official sources are available in Japanese only.
