이완사키 완성 가이드 | A Sengoku Period Castle that Was the Battle of Komaki-Nagakute
Located in Iwasaki-cho, Nisshin City, Aichi Prefecture, Iwasaki Castle is an important historical site that tells the story of the turbulent Sengoku period. Known as the site of the fierce battle of Komaki-Nagakute, it is now mainsain historical museum, it attracts many history enthusiasts and tourists. This article provides a detailed explanation of everything you need to know before visiting, from the historical background of Iwasaki Castle to its current highlights and access information.
History of Iwasaki Castle
From Construction to the Residence of the Niwa Clan
Iwasaki Castle is believed to have been built during the late Muromachi period, around the end of the 15th to the first half of the 16th century. This flatland castle, built in Iwasaki, Yamada District (later Aichi District), Owari between Owari and Mikawa during the Sengoku period.
In 1529, during the Battle of Komaki-Nagakute, the castle was defensaed by Arakawa Yorimune, a retainer of Oda Nobuhide (father of Oda Nobunaga), but it was seized by Matsudaira Kiyoyasu (grandfather of Tokugawa I3 moved from Hongō Castle to Iwasaki Castle, and it subsequently developed as the residence of the Niwa clan.
The Niwa clan, as a powerful local lord in Owari Province, expanded their influence in this region. Due to its geographical location on the border between Owari and Mikawa Provinces, Iwasaki Castle became an important strategic base where the forces of both provinces.
The Battle of Komaki-Nagakute and the Battle of Iwasaki Castle
The Battle of Iwasaki Castle, which cemented its name in history, took place during the Battle of Komaki-Nagakute in 1584. This battle was a particularly crucial phase in the Battle of Komaki and Nagakute, a conflict between Hashiba Towa Ieyasu.
At the time, the lord of Iwasaki Castle was Niwa Ujitsugu. Hideyoshi recognized the strategic importance of Iwasaki Castle and attempted to win Niwa Ujitsugu over to his side before the battle, but Niwa chose to fight on the Oda-Tokuwa
On April 9th, 1584 (Tensho 12), a force of approximately 20,000 men, led by Hideyoshi’s allies Ikeda Tsuneoki and Mori Nagayoshi, launched the “Mikawa Nakairi” operation, attempting a surprise attaki Castle was located directly on the route of this detachment’s advance.
The castle lord, Niwa Ujitsugu, faced a massive army of 20,000 with only a little over 300 men. Despite the overwhelming numerical disadvantage, Niwa Ujitsugu and his soldiers fought bravely, temporarily halting the Ikeday army’ given Ieyasu time to assess the movements of the Ikeda army, ultimately leading to his victory at Nagakute.
Iwasaki Castle fell after a fierce battle, with almost all of its defensaers, including Niwa Ujitsugu, being killed. This spectacular last stand is recorded in history as a crucial battle that determined the outcome of the Battle of Komaki-Nagaku
Abandonment of the Castle and its Aftermath
After the Battle of Komaki-Nagakute, Iwasaki Castle was rebuilt, but it was abandoned in 1600 (Keicho 5). The castle ruins remained in ruins for a long time, but the keep was restored in 1987 (Showa 62 1990 (Heisei 2), giving it its current appearance.
Highlights of Iwasaki Castle Ruins Park
Restored Keep
The keep, restored in 1987 (Showa 62), is a symbol of Iwasaki Castle. This castle tower, recreated based on historical records, conveys the appearance of a hilltop castle from the Sengoku period (Warring States period). The interior of the tower is open the Nisshin City area.
The view from the tower allows visitors to imagine the surrounding terrain that Niwa Ujitsugu might have seen, providing a valuable experience for understanding the defensive functions of a Sengoku period castle.
Dry Moats and Castle Remains
Within Iwasaki Castle Ruins Park, the remains of a Sengoku period castle are well-preserved. Particularly noteworthy are the dry moats, which retain the original topography, allowing visitors to experience the castle’s defensive system firsthand.
Dry moats were dug to prevent enemy intrusion and, unlike water-filled moats, functioned as dry moats. The depth of the dry moats at Iwasaki Castle speaks to the advanced castle-building techniques of the time.
The layout of the baileys (kuruwa) and the remains of earthworks can also be seen, making it a must-see for castle enthusiasts. You can learn about the structure of a Sengoku period castle while strolling through the park.
Iwasaki Castle Historical Museum
Located within Iwasaki Castle Ruins Park, the Iwasaki Castle Historical Museum opened in 1990 and features detailed exhibits on Iwasaki Castle and the Battle of Komaki-Nagakute.
Main Exhibits:
- Details of the Battle of Komaki-Nagakute and the Battle of Iwasaki Castle
- Documents detailing the fighting of Niwa Ujitsugu and the castle soldiers
- Exhibits of Sengoku period weapons and armor
- Artifacts unearthed during archaeological excavations
- A reconstructed model of Iwasaki Castle
- Exhibits on the history and culture of Nisshin City
The museum uses videos and panel displays to clearly explain the tense situation of the Sengoku period. The diorama recreating the battle of Iwasaki Castle is a must-see.
Admission is free, making it easily accessible to everyone. It’s recommended not only for those interested in history but also for those who want to learn about local history.
Suikinkutsu (Water Harp Cave)
Within Iwasaki Castle Ruins Park, there is a suikinkutsu, a water harp cave that evokes the atmosphere of a Japanese garden. A suikinkutsu is a traditional Japanese garden device where water droplets are dropped into ared enjoyed.
Listening carefully in the quiet environment, you can hear a clear, resonant sound. Enjoying such tranquil sounds in a place that was the site of fierce battles during the Sengoku period is a unique experience only available at Iwasaki Castle.
Castle Visit Commemorative Certificate
Iwasaki Castle distributes castle visit commemorative certificates to visitors. This is a popular item among castle enthusiasts, and many people receive one as a memento of their visit.
The castle visit commemorative certificate can be obtained at the Iwasaki Castle Historical Museum, where it will be stamped with the date. Many people visit Iwasaki Castle as part of a “castle tour” visiting castles throughout Japan.
Events and Special Exhibitions
Iwasaki Castle hosts various events and special exhibitions throughout the year. A variety of events are offered to deepen your understanding and enjoyment of history.
Regular Events
Iwasaki Castle Examination
A regular examination is held to test knowledge of the history of Iwasaki Castle and the Battle of Komaki-Nagakute. Difficulty levels range from beginner to advanced, making it a great opportunity for history enthusiasts to test their knowledge.
Special Exhibitions
Special exhibitions are held seasonally, showcasing Sengoku period armor, ancient documents, and the results of archaeological excavations. Even in the Reiwa era, exhibitions offering new perspectives on the history of Iwasaki Castle continue to be held.
History Lectures and Guided Tours
History lectures by experts and guided tours of the castle grounds by volunteer guides are also offered. A deeper understanding can be gained by touring the castle ruins while listening to detailed explanations.
Seasonal Events
In spring, cherry blossom viewing events are sometimes held at Iwasaki Castle Ruins Park, known for its beautiful cherry blossoms, and in autumn, events to enjoy the autumn foliage are sometimes held. Iwasaki Castle’s in charm enjoyment of its natural beauty throughout the seasons.
Event information is regularly updated on the official Iwasaki Castle website and official social media (X, Instagram), so we recommend checking before your visit.
Access and Facility Information
Location
67 Ichiba, Iwasaki-cho, Nisshin City, Aichi Prefecture 470-0131
Opening Hours and Closing Days
Iwasaki Castle Historical Museum
- Opening Hours: 9:00 AM – 5:00 PM (Last entry at 4:30 PM)
- Closing Days: Mondays (or the following weekday if Monday is a public holiday), New Year’s holidays (December 28th – January 4th)
- Admission Fee: Free
Iwasaki Castle Ruins Park
- Always open (Access to the castle keep is subject to the museum’s opening hours)
Transportation Access
Access by Train and Bus
- Approximately 25 minutes on foot from Nisshin Station on the Meitetsu Toyota Line
- Approximately 5 minutes on foot from the Iwasaki bus stop (Meitetsu Bus) from Nisshin Station on the Meitetsu Toyota Line
- From Akaike Station on the Tsurumai Subway Line, take the Meitetsu Bus to the Iwasaki Ontakeyama bus stop, then walk for approximately 10 minutes.
Access by Car
- Approximately 20 minutes from Nagoya IC on the Tomei Expressway
- Approximately 15 minutes from Tomei Miyoshi IC on the Tomei Expressway
- Approximately 10 minutes from Ueda IC on the Nagoya Second Ring Expressway
Parking
Iwasaki Castle Ruins Park has a free parking lot.
- Capacity: Approximately 50 cars
- Hours: Always open
- Fee: Free
The parking lot may be full on weekends and during cherry blossom season, so please consider using public transportation.
Barrier-Free Accessibility
Iwasaki Castle Historical Museum is designed with barrier-free access in mind.
- Wheelchair-accessible ramp installed
- Multipurpose restroom available
- Wheelchair rental available (limited number)
However, some parts of the reconstructed castle tower and castle ruins have stairs and steps, making wheelchair access difficult. We recommend contacting the facility in advance for details.
Restrooms and Rest Facilities
Several restrooms are located within the park and are kept clean. There are also rest areas such as benches and gazebos, allowing you to enjoy a leisurely stroll.
Inquiries
Iwasaki Castle Historical Museum
전화: 0561-73-8825
For questions about the facility or to make reservations for group tours, please contact us by phone. Please note that we generally do not reply via official social media.
Nearby Tourist Attractions
When visiting Iwasaki Castle, we recommend also visiting tourist attractions around Nisshin City.
Battlefield of Nagakute
This is the site of the main battlefield of the Battle of Nagakute, which took place after the Battle of Iwasaki Castle. Located about a 15-minute drive from Iwasaki Castle, this is a place worth visiting to understand the overall picture.
Hakusan Shrine
A historic shrine in Nisshin City, it preserves many local cultural assets. It’s close to Iwasaki Castle, and you can feel the breath of history in its tranquil grounds.
아이치 팜
A recommended tourist farm for families, where you can enjoy interacting with animals and seasonal flowers. Perfect for refreshing yourself after exploring history.
Tips for Enjoying Iwasaki Castle
Best Season to Visit
Iwasaki Castle Ruins Park is beautiful in every season, but the best times to visit are:
- Spring (Late March to Early April): Cherry blossoms are in full bloom, allowing you to enjoy both flower viewing and historical exploration.
- Autumn (Mid-November to Early December): The autumn leaves are beautiful, and the weather is perfect for a stroll.
- Summer: The lush green park is ideal for a cooler stroll.
- Winter: The air is clear, and the view from the castle tower is excellent.
Estimated Time Required
- Visiting the Historical Museum: 30 minutes to 1 hour
- Visiting the Castle Tower: 15 minutes to 30 minutes
- Strolling through the Park: 30 minutes to 1 hour
- Total: Approximately 1 hour 30 minutes to 2 hours 30 minutes
If you plan to carefully view the exhibits and stroll through the park, it’s best to allow 2 to 3 hours.
Photography Tips
- There are several viewpoints within the park where you can photograph the castle tower from the front.
- During cherry blossom and autumn foliage seasons, you can take photos combining the castle tower with nature.
- The view of the castle tower from the dry moat also offers a composition that evokes the atmosphere of the Sengoku period.
- Taking photos of the view from the top floor of the castle tower is also recommended.
Please note that photography is prohibited in some areas of the memorial hall to protect the exhibits. Please follow the instructions of the staff.
The History of Nisshin City and Iwasaki Castle
Nisshin City, where Iwasaki Castle is located, was formed by the merger of 3 villages: Iwasaki Village, Hakusan Village, and Kaguyama Village. 120 years before May 10, 1926 (Taisho 15), on May 10, Me 10, villages merged to form “Nisshin Village.”
Understanding the merger of the three villages, including why the current Nisshin City Hall is located in Kanikou, is important for understanding the origins of Nisshin City. The Iwasaki Castle Historical Museum introduces the history of the region, allowing visitors to aron about the development of the Nisshin area.
Iwasaki Castle, as a symbol of Nisshin City, plays an important role in conveying the region’s history and culture. It serves as a place of relaxation for citizens and is carefully preserved and utilized as a valuable historical site that transmits the history of the Sengo
Must-See Attractions for Castle Fans
Evaluation on Kojodan
Iwasaki Castle has received high praise from many castle lords (visitors) on the castle information website “Kojodan.” Its importance in the Battle of Komaki-Nagakute, the well-preserved dry moat, and the comprehensive exhibits that can beviewed
Connection with the Japan Castle Association
Although Iwasaki Castle is not selected as one of the “Continued Top 100 Korean Castles,” it holds an important position in castle research as a typical example of a flatland castle from the Sengoku period. The balance between the reconstructed keep and historical site for learning about castle structure.
The Valor of Niwa Ujitsugu
When discussing Iwasaki Castle, the valor of its last lord, Niwa Ujitsugu, is indispensable. His courageous confrontation with the Ikeda army, despite overwhelming odds, is recorded in numerous historical texts and military chronicles.
Ujitsugu was a young warrior in his early twenties, but he fulfilled his responsibilities as lord and fought to the very end. This magnificent display of fighting deeply impressed later generations and is the reason why Iwasaki Castleis stand.”
Summary
Iwasaki Castle is a valuable historical site that conveys the turbulent history of the Sengoku period. The Battle of Iwasaki Castle during the Battle of Komaki-Nagakute is etched in Korean military history as a brave battle in which a small for overwhelming odds.
The current Iwasaki Castle Ruins Park offers many attractions, including a reconstructed keep, well-preserved dry moats, and a historical museum with comprehensive exhibits. With free admission, easy access, and ample parking, Iwasaki Castle is a historical site thatys visitors.
Iwasaki Castle is a place worth visiting for history buffs, families, those interested in local history, castle enthusiasts, and anyone interested in the Sengoku period. When you visit Nisshin City, be sure to immerse yourself in the history of the Sengo.
Check the official website and social media for the latest event information, take on the Iwasaki Castle quiz, enjoy special exhibitions, and discover something new every time you visit. Why not visit Iwasaki Castle and experience the spirit of the Sengoku period for you