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Sunomata Ichiya Castle, Ogaki

3.9 (1822)History MuseumTourist AttractionMuseumPoint Of InterestEstablishment

Sunomata Ichiya Castle stands at the confluence of the Sai and Nagara rivers in Ogaki, Gifu Prefecture, earning its distinctive name from the legend that it was constructed in a single night. The castle was built in 1566 by Toyotomi Hideyoshi, then known as Kinoshita Tokichiro and serving as a minor retainer to the powerful warlord Oda Nobunaga, during preparations for the siege of Inabayama Castle. While the "overnight" construction is legendary, historical evidence suggests Hideyoshi cleverly pre-assembled defensive structures and revealed them quickly, taking two to three days to complete the basic fortifications.

The castle holds significant historical importance as Hideyoshi's first castle construction, marking an early chapter in the career of the man who would eventually unify Japan. The actual existence of the castle was confirmed in 1977 through the discovery of the "Maeno Family Document" in an old family home in Konan City, Aichi Prefecture. The current structure, reconstructed in modern times, serves as the Ogaki City Sunomata Historical Resource Center and functions as a museum dedicated to the castle's history and Hideyoshi's rise to power.

Visitors can explore the castle tower and museum exhibits detailing Hideyoshi's life story and the conflict between Nobunaga and the Saito clan. The top floor observation deck offers panoramic views of the surrounding landscape, including views toward Gifu Castle on clear days. The castle grounds along the Sai River are particularly popular during cherry blossom season from late March to mid-April, when the riverbanks transform into scenic spots lined with blooming sakura trees.

The castle charges ¥200 admission for adults, while entry is free for visitors under 18 years old. Free parking is available on-site. Access from JR Ogaki Station requires taking the Meihan-Kintetsu Bus bound for Gifu Shotoku Gakuen University from platform 2, disembarking at the Sunomata stop, followed by a 12-minute walk to the castle. Ogaki Station is approximately 30 minutes from Nagoya Station on the JR Tokaido Line.


Hours
Sunday: 9:00 AM – 5:00 PM
Tuesday: 9:00 AM – 5:00 PM
Wednesday: 9:00 AM – 5:00 PM
Thursday: 9:00 AM – 5:00 PM
Friday: 9:00 AM – 5:00 PM
Saturday: 9:00 AM – 5:00 PM
Phone
+81 584-62-3322
Website
www.city.ogaki.lg.jp


The area

Address
1742-1 墨俣 墨俣町 Ogaki, Gifu 503-0102, Japan

Sunomata Ichiya Castle

Hours

Sunday: 9:00 AM – 5:00 PM
Tuesday: 9:00 AM – 5:00 PM
Wednesday: 9:00 AM – 5:00 PM
Thursday: 9:00 AM – 5:00 PM
Friday: 9:00 AM – 5:00 PM
Saturday: 9:00 AM – 5:00 PM

Phone

+81 584-62-3322

Website

www.city.ogaki.lg.jp

What other travelers are saying about Sunomata Ichiya Castle, Ogaki

Well restored castle in a quiet riverside location,200 yen entry fee and you can climb to the top.Plenty of historical displays but all in Japanese only.
Profile
M
Oct 23, 2025
Unlike what another reviewer claims, there is bus service from both Ogaki Station and Gifu Station. From the bus stop it's a bit of a walk to the castle but easily within walking distance for most people. I went at the height of cherry blossom season which really made it worth the trip. The interior of the castle is pretty much a museum like Ogaki Castle or how Gifu Castle was before the interior was renovated. I liked the castle well enough but the cherry blossoms were the main attraction.
We went in the evening to avoid crowds and see the lights. The grounds are lovely and we were blown away by the size of the castle itself.
Interesting history behind this castle. They built it in a rush (the base in 7 days and then 1 day for the finishing touches) to scare off a potential attack from an opposing army. Nice walk around the area too
A beautiful castle locatwd near the highway. There is a museum inside it too. However, there are only a few souvenirs available here. Regardless, it's perfect to visit this place to learn more about Japanese history. History lovers would surely love this place.

Nearby attractions to see

Takayama Matsuri Yatai Kaikan

Takayama Festival Floats Exhibition Hall

Mino Ceramic Art Museum

Mino Ceramic Art Museum, Tajimi

Washigatake Ski Area

Washigatake Ski Area, Gujo

Iwataro's Weeping Cherry Blossoms

Iwataro's Weeping Cherry Blossoms, Gero

Nearby attractions to see

Takayama Matsuri Yatai Kaikan

Takayama Festival Floats Exhibition Hall

Mino Ceramic Art Museum

Mino Ceramic Art Museum, Tajimi

Washigatake Ski Area

Washigatake Ski Area, Gujo

Iwataro's Weeping Cherry Blossoms

Iwataro's Weeping Cherry Blossoms, Gero


Frequently Asked Questions

The legend states the castle was constructed overnight, which is how it earned the name "Ichiya Castle" (One Night Castle). However, historical evidence suggests that Toyotomi Hideyoshi used pre-assembled defensive structures and revealed them quickly rather than literally building everything in a single night. The actual construction likely took two to three days to complete the basic fortifications. This clever strategy created the illusion of overnight construction, which served as an impressive psychological tactic during the military campaign.

Adult admission to Sunomata Castle is ¥200, while entry is free for visitors under 18 years old. Free parking is available on-site for those driving to the castle. The affordable admission makes it an accessible attraction for families and budget-conscious travelers exploring Gifu Prefecture.

Sunomata Castle is open from 9:00 AM to 5:00 PM and is closed on Mondays. If Monday falls on a public holiday, the castle remains open. Visitors should plan to spend around one hour exploring the castle tower, museum exhibits, and surrounding grounds.

From Nagoya Station, take the JR Tokaido Line to Ogaki Station, which takes approximately 30 minutes. From JR Ogaki Station, take the Meihan-Kintetsu Bus bound for Gifu Shotoku Gakuen University from platform 2 and get off at the Sunomata stop. The castle is then a 12-minute walk from the bus stop. Alternatively, visitors with their own transportation can drive directly to the castle, where free parking is available.

The most popular time to visit is during cherry blossom season from late March to mid-April, when the banks of the Sai and Nagara rivers surrounding the castle are lined with blooming sakura trees. The combination of the historic castle and vibrant cherry blossoms creates spectacular photo opportunities. For those who prefer fewer crowds, visiting during other seasons still offers good views from the observation deck and interesting museum exhibits about Toyotomi Hideyoshi's early career and the castle's strategic importance in 16th-century Japan.
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