SilkCode LibraryCastles of Japan
No. 091Kyushu & OkinawaNagasaki

Shimabara Castle

島原城

Reconstructed buildings

Shimabara Castle is known for its white five-tiered keep and angular stone walls. The reconstructed keep houses displays about the region’s history.

The white reconstructed keep of Shimabara Castle
The white reconstructed keep of Shimabara CastlePhoto: Heartoftheworld · CC BY-SA 3.0 · Resized and converted to WebP. Cards crop the display.This photograph shows the site at the time it was taken. Check the notes and official sources for current restoration work and access.

Get to know the castle

Castle at a glance

Site & layout
Lowland castle with successive main, second and third enclosures
Origins
Begun 1618; present keep reconstructed 1964
Builders & patrons
Matsukura Shigemasa
Other names
—
What remains today
Walls and moats; keep and turrets are modern reconstructions

THE STORY

The story behind the walls

Matsukura Shigemasa began construction in 1618. Sources differ on how long completion took, so the starting date should not be confused with the completion date. Successive daimyo families used it as the centre of Shimabara Domain. Its buildings were dismantled in the Meiji period, leaving walls and moats. The keep was reconstructed in 1964 and became a museum of Christian and local history.

LAYOUT & ARCHITECTURE

Read the landscape and the buildings.

The main, second and third enclosures ran from south to north, with a deep inner moat around the central two. A former covered bridge between the main and second enclosures could be cut in wartime to isolate the core. Angled walls and turret positions added layered defences to this linear plan.

A CLOSER LOOK

Details worth a closer look.

01

Five-tiered keep

The modern building recreates the layered form of a sotogata keep. The building is not a surviving Edo-period wooden keep.

02

Stone walls and inner moat

Angled walls and a deep moat protected the main and second enclosures. Following the angles from outside helps explain the non-linear wall defences.

03

Historical displays

Exhibits introduce Christian history and local heritage. The displays place the architecture within the region’s early-modern history.

THROUGH THE YEARS

A short timeline

  1. 1618

    Matsukura Shigemasa begins construction.

  2. Meiji period

    The castle buildings are dismantled.

  3. 1964

    The keep is reconstructed and used as a museum.

BEFORE YOU GO

A note before you go.

Combine the museum with a walk around the castle. Check official notices for interior access and changes related to events.

Official visitor information ↗Find it on a map ↗

Information checked: 27 September 2026

Sources & official information

Some official sources are available in Japanese only.

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