Hizen-Nagoya Castle

肥前名護屋城 · Hizen-Nagoya-jo

D Defense 50/100

C Defense 62/100

The vanished capital of Hideyoshi's Korean invasion — briefly the second-largest castle in Japan, then deliberately demolished, now one of the most historically haunting ruins in Kyushu.

#87 — Continued 100 Castles

Quick Facts

Admission: Free Free
Hours: 00:00 – 23:59
Nearest Station: Yobuko (bus terminal) via Karatsu Station (JR Chikuhi Line)
Walk from Station: 30 min
Time Needed: 2-3 hours (castle ruins + museum)

The castle ruins are free to enter at all times. The Saga Prefectural Nagoya Castle Museum adjacent to the ruins charges 500 yen for adults (reduced for students and seniors). The museum is highly recommended for understanding the scale of operations here.

Why Visit Hizen-Nagoya Castle?

Hizen-Nagoya Castle is one of the most historically significant sites in Japan — the staging ground for the largest Japanese overseas military operation in pre-modern history. The ruins are evocative, but the adjacent museum transforms the visit into a genuinely educational experience. Standing on the stone walls looking across the Korea Strait, you are standing where 130 daimyo and 300,000 soldiers assembled to invade Asia.

Highlights — What to Look For

Hideyoshi's Launchpad for the Invasion of Asia

Hizen-Nagoya Castle was built in just five months in 1591-92 as the staging base for Toyotomi Hideyoshi's invasion of Korea — the most ambitious Japanese military operation before the 20th century. At its peak, over 130 daimyo gathered here with their forces, and more than 300,000 soldiers and sailors assembled in and around this remote Kyushu peninsula. The scale was breathtaking: the castle alone was second in size only to Osaka Castle at that moment.

A City That Appeared and Vanished in a Decade

To support the assembled armies, a castle town of extraordinary size appeared virtually overnight around Hizen-Nagoya — with merchants, craftsmen, entertainers, and service providers flooding in from across Japan. At its peak it was one of the largest urban concentrations in the country. After the invasions failed and Hideyoshi died in 1598, the castle was deliberately demolished and the castle town dissolved. A thriving city appeared and disappeared within a single decade.

Stone Walls Over the Korea Strait

Walking the surviving stone walls of Hizen-Nagoya Castle today, you can look out across the Korea Strait toward the Korean peninsula — the same view that Hideyoshi's generals had as they planned an operation intended to conquer Korea, China, and eventually India. The adjacent Nagoya Castle Museum holds an extraordinary collection of artifacts and a scale model that conveys the castle's vanished grandeur.

How This Castle Was Built to Fight

Visitor Tip

Hizen-Nagoya Castle is primarily a historical meditation site — the ruins are impressive but the story is what makes it extraordinary. Start with the adjacent Saga Prefectural Nagoya Castle Museum, which has a superb scale model and exhibition. Then walk the ruins with the mental image of 130 daimyo's encampments spreading across the surrounding hills and 300,000 soldiers waiting to cross the Korea Strait. The museum admission (500 yen) is absolutely worth it.

Castle Type

hirajiro

Flatland castle — built on a low coastal promontory overlooking the Korea Strait on the Higashimatsuura Peninsula of Saga Prefecture, using the sea views and coastal position as a staging base rather than a defensive highland

Layout Type

rinkaku

Enclosure style — concentric compounds spreading across the coastal promontory, with the main tower compound at the highest point and extensive subsidiary compounds and daimyo encampments spreading across the surrounding area

Main Tower (Tenshu)

Complete ruins — the castle was deliberately demolished after the Korean invasions failed and Hideyoshi died in 1598. Extensive stone walls (ishigaki) and compound earthworks survive across the large site, and the adjacent museum reconstruction conveys the original scale. The stone walls are among the most impressive surviving ruins from the Momoyama period.

Stone Walls (Ishigaki)

kirikomi_hagi — Fitted stone masonry — carefully cut and fitted stones assembled without mortar, representing the Momoyama period's most advanced stone-wall construction techniques. The walls at Hizen-Nagoya were built by the leading castle engineers of the era, assembled from the labor of hundreds of thousands of workers.

The surviving stone walls (ishigaki) at Hizen-Nagoya are extensive and impressive, reflecting the enormous resources Hideyoshi poured into this castle's construction. Multiple compound areas retain their stone-wall perimeters, and the walls' quality — built to demonstrate Hideyoshi's power to the assembled daimyo — rivals those of his greatest castles at Osaka and Fushimi.

Moats

Dry and wet moat sections enclosed the main compound area, with the sea itself serving as a defensive barrier on the coastal side. The moat system was designed more to define compound boundaries than to resist assault, reflecting the castle's role as a command base rather than a purely defensive fortification.

Key Defensive Features

Massive Scale as Deterrence

Hizen-Nagoya Castle's primary defense was its sheer scale — with 130 daimyo and over 300,000 troops assembled in the surrounding area, no force in Japan or Korea could contemplate attacking it. The castle was never seriously threatened because its garrison was, for its brief operational period, effectively the entire military capacity of Japan.

Coastal Promontory Position

The castle site on the Higashimatsuura Peninsula gives it natural water barriers on three sides, with the Korea Strait visible to the north. This position was chosen primarily for logistics — proximity to departure points for Korea — but also provides natural defensive advantages against land-based approach.

Momoyama-Era Advanced Stone Walls

The kirikomi hagi stone walls, built by the era's leading castle engineers mobilizing tens of thousands of workers, represented the cutting edge of Japanese fortification technology in 1592. The walls were built to impress the assembled daimyo as much as to defend against attack, and their surviving remnants remain imposing four centuries later.

Tactical Defense Simulator

Masugata Gate (Square Trap)

The Deadliest Gate in Japan

⚔ Attacking Force

1,000 / 1,000 troops

Phase 1: Approach

The attacking force crosses the moat and approaches the outer gate. Defenders hold fire, allowing the enemy to commit.

Castle Defense Layers

Outer Encampments — 130 Daimyo Positions

· Daimyo encampment ruins surrounding the main castle· Castle town and logistics area· Coastal departure points for Korea

Sannomaru and Outer Compounds

· Third compound stone walls· Subsidiary compound areas· Gate complexes

Ninomaru — Second Compound

· Second compound stone walls· Administrative facilities· Intermediate defense ring

Honmaru — Main Compound (Five-Story Tower Site)

· Five-story main tower foundation· Hideyoshi's command headquarters· Korea Strait observation point

Historical Context — Hizen-Nagoya Castle

Hizen-Nagoya Castle was never attacked — no force existed in Japan or Korea capable of threatening a position garrisoned by 130 daimyo and 300,000 soldiers. The castle's destruction came not from enemy action but from deliberate demolition after Hideyoshi's death in 1598, ordered to prevent any successor from using it as a base for renewed continental ambitions.

The Story of Hizen-Nagoya Castle

Originally built 1591 by Toyotomi Hideyoshi

Current form 1592 by Toyotomi Hideyoshi

1591

Toyotomi Hideyoshi orders the construction of a massive castle on the Higashimatsuura Peninsula of Hizen Province (modern Saga Prefecture). Using the assembled labor of daimyo from across Japan, construction is completed in just five months — an extraordinary feat that demonstrates Hideyoshi's unmatched ability to command national resources.

1592

The first Korean invasion (Bunroku Campaign) launches from Hizen-Nagoya. Over 130 daimyo with approximately 160,000 troops cross the Korea Strait in the largest Japanese overseas military operation in history. Hideyoshi remains at Nagoya Castle while his generals advance through Korea toward China.

1593

Chinese Ming Dynasty forces enter Korea and push Japanese forces south. Peace negotiations begin. The invasion stalls, and the massive assembly at Nagoya Castle waits in a state of strategic limbo. Disease, supply problems, and Korean guerrilla resistance weaken the Japanese position significantly.

1597

After failed peace negotiations, Hideyoshi orders a second invasion (Keicho Campaign). Again Hizen-Nagoya serves as the staging base. But this campaign goes worse than the first — Korean naval resistance under Admiral Yi Sun-sin disrupts Japanese supply lines, and the death toll mounts.

1598

Toyotomi Hideyoshi dies in September, and his council of regents immediately orders a full withdrawal from Korea. The invasions are over. Hizen-Nagoya Castle is deliberately demolished to prevent it from becoming a base for future continental ambitions by rival daimyo.

1600

The site is completely abandoned after the demolition. The surrounding castle town dissolves. Within two years of its peak as one of Japan's largest urban concentrations, the area has returned to quiet farmland and fishing villages.

1955

The site is designated a National Historic Site, recognizing its extraordinary historical importance as the base for the largest Japanese overseas military operation before modern times.

1998

The Saga Prefectural Nagoya Castle Museum opens adjacent to the ruins, providing comprehensive interpretation of the castle and its role in the Korean invasions. The museum becomes an essential companion to any visit.

2017

Hizen-Nagoya Castle is selected as #87 on the 続日本100名城 list, reflecting its extraordinary historical significance — a site that briefly rivaled Osaka Castle in scale and was the operational headquarters for Japan's most ambitious military enterprise of the pre-modern era.

Did You Know?

At its peak, Hizen-Nagoya Castle was the second-largest castle in Japan — smaller only than Osaka Castle. It was constructed in just five months through the mobilized labor of daimyo from across the country, a logistics feat that demonstrated Hideyoshi's unmatched command authority.
The assembled force at Hizen-Nagoya in 1592 included some of the most famous names in Japanese military history: Konishi Yukinaga, Kato Kiyomasa, Fukushima Masanori, Kuroda Nagamasa, and dozens of others — essentially a who's who of late Sengoku Japan.
Korea's Admiral Yi Sun-sin, who used innovative turtle ships (geobukseon) to disrupt Japanese supply lines during the invasions, is credited with a decisive role in the invasions' failure. His naval victories are still celebrated in Korea today.
More than 130 daimyo built personal encampment castles in the hills around Hizen-Nagoya Castle — the remains of some of these subsidiary encampments are still visible in the surrounding area, making the entire Higashimatsuura Peninsula one vast historical site.

Score Breakdown

Tourism Score

D 50/100

Accessibility 7 /20
Foreign-Friendly 8 /20
Historical Value 20 /20
Visual Impact 8 /20
Facilities 7 /20

Defense Score

C 62/100

Natural Position 16 /20
Wall Complexity 13 /20
Layout Strategy 14 /20
Approach Difficulty 11 /20
Siege Resistance 8 /20

Planning Your Visit

Best Time to Visit

Spring and autumn for clearest sea views across the Korea Strait. Clear winter days offer exceptional visibility toward the Korean coastline on the horizon.

Time Needed

2-3 hours (castle ruins + museum)

Insider Tip

The Nagoya Castle Museum (500 yen) is the best investment you can make for understanding the site — spend an hour there first, then walk the ruins. On a clear day look north from the stone walls toward the sea — the Korean peninsula is visible on the horizon, barely 200 km away. It makes the history visceral in a way no museum exhibit can.

Getting There

Nearest station: Yobuko (bus terminal) via Karatsu Station (JR Chikuhi Line)

Walk from station: 30 minutes

Bus: Buses run from Karatsu Station to Yobuko, then connecting service toward the castle. Most visitors come by car. The drive from Karatsu city takes about 30 minutes along the scenic Genkai coast.

Parking: Free parking at the castle ruins and museum. Ample space.

Accessible with a JR Pass

Open in Google Maps

Admission

Free Entry

Opening Hours

Open 00:00 – 23:59

Castle ruins open year-round at all hours. The Nagoya Castle Museum is open 9:00-17:00, closed Mondays. Spring is excellent for views of the Korea Strait; autumn for the coastal landscape without summer haze.

Facilities

English guides
Audio guide
Wheelchair access
Restrooms
Gift shop
Food nearby

Official website

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Frequently Asked Questions

How do I get to Hizen-Nagoya Castle?

The nearest station is Yobuko (bus terminal) via Karatsu Station (JR Chikuhi Line). It is approximately a 30-minute walk from the station. Buses run from Karatsu Station to Yobuko, then connecting service toward the castle. Most visitors come by car. The drive from Karatsu city takes about 30 minutes along the scenic Genkai coast. Parking: Free parking at the castle ruins and museum. Ample space. Accessible with a JR Pass.

How much does Hizen-Nagoya Castle cost to enter?

Hizen-Nagoya Castle is free to enter. The castle ruins are free to enter at all times. The Saga Prefectural Nagoya Castle Museum adjacent to the ruins charges 500 yen for adults (reduced for students and seniors). The museum is highly recommended for understanding the scale of operations here.

Is Hizen-Nagoya Castle worth visiting?

What are the opening hours of Hizen-Nagoya Castle?

Hizen-Nagoya Castle is open 00:00 – 23:59 . Castle ruins open year-round at all hours. The Nagoya Castle Museum is open 9:00-17:00, closed Mondays. Spring is excellent for views of the Korea Strait; autumn for the coastal landscape without summer haze.

How long should I spend at Hizen-Nagoya Castle?

Plan on spending 2-3 hours (castle ruins + museum) at Hizen-Nagoya Castle. The Nagoya Castle Museum (500 yen) is the best investment you can make for understanding the site — spend an hour there first, then walk the ruins. On a clear day look north from the stone walls toward the sea — the Korean peninsula is visible on the horizon, barely 200 km away. It makes the history visceral in a way no museum exhibit can.