No. 094Kyushu & OkinawaOita

Oita Funai Castle

大分府内城

Ruins & historic sites

A moat, walls and turrets preserve this castle site in central Oita. Although its keep is lost, the layout remains legible on foot.

The moat, a turret and stone walls at Oita-Funai Castle
The moat, a turret and stone walls at Oita-Funai CastlePhoto: 663highland · CC BY 2.5 · 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 enclosed by moats and walls
Origins
Begun 1597; developed in the early Edo period
Builders & patrons
Fukuhara Naotaka and Takenaka Shigetoshi
Other names
Funai Castle; Niage Castle
What remains today
Shumon and Hitojichi turrets, walls, moat and keep platform; covered bridge reconstructed

THE STORY

The story behind the walls

Fukuhara Naotaka began construction in 1597. Takenaka Shigetoshi continued the work and developed the castle. The keep burned in 1743 and was never rebuilt. The surviving Shumon Turret dates to 1859 and Hitojichi Turret to 1861. A covered bridge was reconstructed in 1995, adding interpretation to the historic remains.

LAYOUT & ARCHITECTURE

Read the landscape and the buildings.

Moats and walls divided the flat site into enclosures connected by bridges and gates. The empty keep platform contrasts with two turrets surviving from the late Edo period. The reconstructed covered bridge helps explain connections between spaces that are less obvious from outside.

A CLOSER LOOK

Details worth a closer look.

01

Edo-period turrets

Shumon and Hitojichi turrets survive from the late Edo period. They postdate the castle’s foundation but are historic structures rather than modern imitations.

02

Covered bridge

The covered bridge was reconstructed in 1995 using historical evidence. Its modern date can be compared with that of the surviving turrets.

03

Moat and keep platform

The walls across the moat and the empty keep platform suggest the lost castle. The absence of a keep is itself part of the castle’s history since 1743.

THROUGH THE YEARS

A short timeline

  1. 1597

    Fukuhara Naotaka begins construction.

  2. 1743

    The keep burns and is never rebuilt.

  3. 1859 and 1861

    The surviving Shumon and Hitojichi turrets are built.

  4. 1995

    The covered bridge is reconstructed.

BEFORE YOU GO

A note before you go.

Check separately for access to the grounds and turret interiors. Consult Oita City for construction or event-related changes.

Information checked: 27 September 2026

Sources & official information

Some official sources are available in Japanese only.