Sueyoshi Castle (Shiga Town, Ishikawa Prefecture): A Complete Guide to its History and Highlights | From a Branch Castle of the Hatakeyama Clan to the Maeda Era
What is Sueyoshi Castle?
Sueyoshi Castle is a medieval hill castle located in Sueyoshi, Shiga Town, Hakui District, Ishikawa Prefecture. It was built by the Hatakeyama clan as an important base for defending the outer coastal area of the Noto Peninsula. It functioned as a branch castle of Nanao Castle and was strategically located at a key point controlling two major roads: the Tokuda Road and the Tsuchida Road.
Built on the Sueyoshi hill in the Horimatsu district of Shiga Town, this castle boasts an excellent location overlooking the Sea of Japan and played a crucial role in the defense of northern Noto. Currently, some remains of the castle exist, making it a valuable historical site for understanding the history of medieval castles in Ishikawa Prefecture.
History of Sueyoshi Castle
Background of Construction and the Hatakeyama Clan Era
The construction of Sueyoshi Castle dates back to the chaotic period after the Onin War. In 1477 (Bunmei 9), the third-generation Hatakeyama Yoshimune returned to Japan and, aiming to consolidate his territory in Horimatsu Manor, constructed Sueyoshi Castle to defend the Sotoura district in the northern part of Notoguchi County.
The Hatakeyama clan, as the shugo daimyo (provincial governor) of Noto Province, had their base at Nanao Castle. However, to govern the vast Noto Peninsula, they needed to establish branch castles throughout the region. Sueyoshi Castle played a key role in this network of branch castles, functioning particularly as a frontline base to prepare for invasions from the north.
Battles during the Sengoku Period
During the Sengoku period (Warring States period), Sueyoshi Castle became the stage for fierce battles. Amidst intensifying power struggles within the Hatakeyama clan’s retainers, it was attacked by powerful vassals such as the Yuza clan.
Of particular note is the invasion of Noto by Uesugi Kenshin in 1576 (Tensho 4). The Uesugi army swept across the entire Noto region, and Sueyoshi Castle became one of their targets. Sueyoshi Castle, controlling the crucial supply routes of the Tokuda and Tsuchida roads, held significant strategic value and was a key stronghold for the Uesugi clan. As a result, Sueyoshi Castle fell, and the Hatakeyama clan’s power suffered a major setback.
Maeda Toshiie’s Entry and Nakagawa Ienori
In 1581, when Maeda Toshiie acquired Noto Province by order of Oda Nobunaga, a new chapter began in the history of Sueyoshi Castle. Maeda Toshiie appointed his retainer, Nakagawa Ienori, as the castle lord.
Nakagawa Ienori, as a senior retainer of the Maeda family, was responsible for the governance and defense of northern Noto. During this period, Sueyoshi Castle is believed to have functioned as a regional base within the Maeda family’s system of rule, contributing to the stabilization of the territory. Relationships with other Christian daimyo, such as Takayama Ukon, may also have influenced the history of this region.
The Abandonment of the Castle and Its Aftermath
With the arrival of the Edo period and the rise of peace, Sueyoshi Castle, like many medieval mountain castles, ceased to serve its military purpose. It is presumed that Sueyoshi Castle was abandoned when the Maeda family established a new governing system centered around Kanazawa Castle.
Afterward, the castle site returned to nature over many years, and has been preserved as a historical heritage in the memories of the local people.
Structure and Layout of Sueyoshi Castle
Location and Topographical Characteristics
Sueyoshi Castle is a typical hill castle built on a hill. It skillfully utilizes the topography of Sueyoshi, Shiga Town, and its design takes advantage of the natural fortifications. Located near the Sea of Japan, it offered excellent visibility from the sea, providing the advantage of early detection of enemy movements.
Built in a position overlooking the intersection of two major roads, the Tokuda Road and the Tsuchida Road, it was a strategically important point from which the flow of troops and supplies traveling along these roads could be monitored and controlled.
Current Status of the Remains
Currently, the remains of Sueyoshi Castle partially retain features characteristic of a medieval mountain castle. The main remains that can be identified are as follows:
Kuruwa (Enclosures)
The topography suggests the arrangement of multiple enclosures around the main enclosure. The elevation changes and flat areas allow us to imagine the layout of the castle at that time.
Moats and Earthworks
Some traces of moats and earthworks, which functioned as defensive structures, can also be seen. These were important defensive lines to prevent enemy intrusion.
Koguchi (Gate)
The location of the Koguchi, the entrance to the castle, can also be estimated from the topography.
Regarding the state of preservation of the remains, large-scale preservation work has not been carried out, allowing visitors to enjoy the pleasure of discovering historical traces remaining in nature. However, a certain level of castle knowledge and observational skills are necessary to confirm the detailed remains.
Highlights of Sueyoshi Castle
Historical Value
The greatest highlight of Sueyoshi Castle lies in its historical background. As a castle associated with the Hatakeyama, Yuza, Uesugi, and Maeda clans—all prominent forces of the Sengoku period—it is an important historical site that tells the story of Noto’s Sengoku history.
Its relationship with Nanao Castle is also an interesting point. Visiting Sueyoshi Castle after visiting Nanao Castle, the main castle, will give you a real sense of how extensive the Hatakeyama clan’s network of branch castles was.
Understanding Medieval Castle Construction Techniques from Topography
One of the pleasures of visiting Sueyoshi Castle is understanding medieval castle construction techniques through topographical observation. You can see firsthand how they utilized the natural terrain to enhance defenses within limited resources and technology.
By walking around the site, you can see how the ridges and valleys of the hills were used, and from which directions attacks were anticipated when the defensive structures were positioned.
Exploring the site reveals the intentions of the castle’s designers. ### Views and Surrounding Environment
From the Sueyoshi Castle Ruins, you can enjoy the beautiful scenery of the Sea of Japan and Shiga Town. On a clear day, you can see the Noto Peninsula’s sea and mountains, the same views that the former lords and soldiers must have seen.
By observing the surrounding terrain and how the Tokuda and Tsuchida roads passed through, you can truly appreciate the castle’s strategic importance as a transportation hub.
Access Information
Location
Address: Sueyoshi, Shiga Town, Hakui District, Ishikawa Prefecture
Postal Code: 925-0198 (Address of Shiga Town Hall)
Shiga Town Hall is located at 1-1 Sueyoshi Chiko, Shiga Town, and its telephone number is 0767-32-1111 (main). For detailed information regarding access to the castle ruins, we recommend contacting Shiga Town Hall.
Transportation Access
Access by Car
- From Kanazawa City: Approximately 1 hour 30 minutes via the Noto Satoyama Expressway
- From Nanao City: Approximately 40 minutes via National Route 249
- The nearest interchange is Nishiyama IC on the Noto Satoyama Expressway
Public Transportation
Public transportation access is limited, so renting a car is recommended. The nearest stations are Hakui Station or Notobe Station on the JR Nanao Line, but you will need to take a bus or taxi from there.
Points to Note When Visiting
- As the castle ruins are only partially maintained, please wear comfortable shoes and clothing.
- In summer, the vegetation is lush, so wearing long sleeves and long pants is recommended.
- It is recommended to use a map app or GPS to confirm your location in advance.
- In winter, there is a possibility of snow, so please check the weather and road conditions before visiting.
- To protect the ruins, unauthorized excavation or destruction of the ruins is strictly prohibited.
Nearby Tourist Attractions
Nanao Castle
Nanao Castle, the main castle of Sueyoshi Castle, is a famous castle counted among Japan’s five great mountain castles. It is designated as a national historic site, and its magnificent stone walls and baileys are well-preserved. Visiting it together with Sueyoshi Castle will give you a deeper understanding of the Hatakeyama clan’s castle network.
Tourist Resources in Shiga Town
Shiga Town has many other attractions besides Sueyoshi Castle.
- Noto Kongo: A scenic spot featuring a series of strangely shaped rocks and boulders created by the rough waves of the Sea of Japan.
- Masuho-ura Coast: A beautiful coastline known for its “world’s longest bench.”
- Ganmon: A cave formed by wave erosion, a representative tourist attraction of Shiga Town.
By combining these natural landscapes and historical heritage sites, you can enjoy a fulfilling Shiga Town sightseeing experience.
Other Castles on the Noto Peninsula
Besides Sueyoshi Castle, many medieval castles are scattered throughout the Noto Peninsula.
- Anamizu Castle: A branch castle of the Hatakeyama clan located in Anamizu Town.
- Torigoe Castle: A castle that served as a base for the Ikko-ikki rebellion in Noto.
- Ishidoyama Castle: A mountain castle deeply connected to religious forces.
Visiting these castles will allow you to gain a more comprehensive understanding of Noto’s Sengoku period history.
Recommended Itinerary for Visiting Sueyoshi Castle
Historical Exploration Course (1-Day Plan)
Morning:
- Visit Nanao Castle and tour the base of the Hatakeyama clan
- Learn about the Sengoku period history of Noto at the Nanao Castle Historical Museum
Afternoon:
- Visit Sueyoshi Castle and see firsthand its role as a subsidiary castle
- Visit tourist spots in Shiga Town (such as Noto Kongo)
Noto Peninsula Tour Course (2-3 Day Plan)
Day 1: Travel from Kanazawa to the Noto Peninsula, focusing on castles such as Nanao Castle and Sueyoshi Castle
Day 2: Enjoy the natural scenery of Shiga Town, then travel towards Wajima
Day 3: After sightseeing in the northern part of the Noto Peninsula, return to Kanazawa
Materials and Research on Sueyoshi Castle
Related Books
The following books are recommended for learning about castles in Noto, including Sueyoshi Castle.
- “Medieval Castles and Fortifications of Ishikawa Prefecture” (Ishikawa Prefectural Board of Education)
- “Castles of Noto” (Publication by a local history research society)
- “The Hatakeyama Clan and the Sengoku Period in Noto” (Sengoku period history research book)
These materials may be available for viewing at the Ishikawa Prefectural Library or your local library. Reviewing them before your visit will deepen your understanding at the site.
Online Information Sources
The castle enthusiast community site “Kojodan” shares information such as photos, evaluations, and castle notes (highlights) from people who have visited Sueyoshi Castle. When planning your visit, it’s a good idea to refer to these actual visitor comments.
Also, the Shiga Town official website provides information on the town’s history and cultural properties. It can be used to check the latest tourist information and access information.
Preservation and Future of Sueyoshi Castle
Value as a Cultural Property
Sueyoshi Castle is an important historical site for understanding the medieval history of Ishikawa Prefecture. Unlike modern castles with large stone walls and keeps, Sueyoshi Castle is a valuable example of a medieval earthen castle, and its preservation is highly desirable.
Utilization as a Regional Resource
For Shiga Town, Sueyoshi Castle is an important historical resource. With proper maintenance and information dissemination, it is expected to be utilized as a tourist resource attracting history enthusiasts and castle fans.
In recent years, interest in castle tourism has been growing nationwide. By leveraging its connection to the famous Nanao Castle and positioning it as part of a sightseeing route exploring the network of subsidiary castles, more people will have the opportunity to learn about the value of Sueyoshi Castle.
Summary
Sueyoshi Castle, a medieval hill castle remaining in Shiga Town, Ishikawa Prefecture, is an important historical site that tells the story of the Sengoku period in Noto. It was built by the Hatakeyama clan as a subsidiary castle of Nanao Castle and functioned as a strategic base protecting the important transportation hubs of the Tokuda and Tsuchida roads.
The castle bears the marks of the turbulent history of the Sengoku period, including battles with the Yuza and Uesugi clans, and the time when Nakagawa Ienori served as castle lord after Maeda Toshiie’s arrival in the region. The remaining ruins offer insights into medieval castle construction techniques and defensive ingenuity, making it a fascinating site for castle enthusiasts.
When visiting Shiga Town, why not take a trip to this historic Sueyoshi Castle, along with enjoying the beautiful scenery of the Sea of Japan? Visiting it in conjunction with Nanao Castle will give you a deeper understanding of Noto’s Sengoku period. Walking the Noto plains, once traversed by warlords, with a map in hand, will surely create unforgettable memories.
For detailed information and the latest visiting information, we recommend contacting Shiga Town Hall (Tel: 0767-32-1111) or checking castle-related websites.
