SilkCode LibraryCastles of Japan
No. 034Hokuriku & TokaiIshikawa

Nanao Castle

七尾城

Ruins & historic sites

The Noto Hatakeyama developed Nanao across both mountain and foothills. Terraced stone walls and ridge enclosures reveal a place of residences and government as well as warfare.

Stonework and tall trees at Nanao Castle
Stonework and tall trees at Nanao CastlePhoto: tom-spring · Public domain · 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
Extensive mountain castle with residences and a lower town
Origins
Thought to date to the early sixteenth century
Builders & patrons
Noto Hatakeyama clan and senior retainers
Other names
—
What remains today
Enclosures, masonry, ditches, residence and town remains

THE STORY

The story behind the walls

The precise foundation is uncertain, but the Noto Hatakeyama are thought to have established the castle in the early sixteenth century. It also hosted cultural exchanges with visitors from Kyoto. Uesugi Kenshin captured it in 1577, followed by Uesugi and then Maeda control. Its role faded as a new base developed at Komaruyama near the port in the late sixteenth century.

LAYOUT & ARCHITECTURE

Read the landscape and the buildings.

Many enclosures follow seven ridges from the summit to the foothills. Groups had a degree of independence rather than forming a simple hierarchy around one central bailey. Walls, ditches, banks and town routes together explain the extensive complex.

A CLOSER LOOK

Details worth a closer look.

01

Terraced stone walls

Around the main enclosure and Sakuranobaba, unshaped stone walls form successive terraces. They divide the slope rather than creating a single tall wall.

02

Residential enclosure groups

Powerful retainers as well as the lord had residences within the castle. Groups of enclosures formed several political and domestic spaces.

03

A castle reaching the foothills

A town occupied the foothills, with an outer perimeter distinguishing protected areas. Historic maps connect the summit with this wider settlement.

THROUGH THE YEARS

A short timeline

  1. Early 1500s

    The Hatakeyama developed the mountain base.

  2. 1577

    Uesugi Kenshin captured the castle.

  3. 1581

    Maeda Toshiie entered Nanao.

  4. 2024

    The Noto earthquake damaged walls and ground.

BEFORE YOU GO

A note before you go.

Part of the old main approach reopened in August 2026, but earthquake-related closures remain. Consult Nanao City’s latest restriction map and do not enter closed areas.

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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