Fukui · Fukui

Ichijodani Asakura Family Historic Ruins

一乗谷城

Fukui, Fukui

CastleMountain castle (yamajiro)Japan's 100 Fine Castles No. 34

What makes this castle distinctive

The castle was on the mountaintop; the lord, his retainers and townspeople lived on the valley floor below. An entire Sengoku-era castle town came out of the ground here.

Why?

Ichijodani is the valley where five generations of the Asakura, rulers of Echizen Province, had their base for about a century. The valley floor held the lord's residence and a castle town of samurai houses, temples and townhouses, while on the mountain to the east, about 473 m high, stood Ichijodani Castle, a fortress to retreat to in an emergency. After Oda Nobunaga burned it in 1573, the town lay buried, and more than 50 years of excavation have revealed in detail what a Sengoku-period castle town looked like, something found at very few sites in Japan.^[1][2][3]

Three things not to miss

The Asakura residence site and the Karamon gate

Where: Near the center of the valley, east of the Ichijodani River. The Karamon stands facing the moat in front of the residence site.
What to look at: The moat and earthen ramparts on three sides, the foundation stones laid out across the flat ground, the residence garden at the back, and the Yudono-ato garden on the rise above.
Why it's interesting: This was the residence where Yoshikage, the fifth head, governed. The grounds cover about 6,400 m², and more than ten buildings stood inside the ramparts; the future shogun Ashikaga Yoshiaki was entertained here. The museum describes it as the only Sengoku warlord's residence in Japan to have been excavated and laid out for visitors. The Karamon gate is not from the Asakura era but was built later.^[4][2]
Can you see it?: Visible from outsideThe residence site and gardens are free to walk around.

The full-scale restored town

Where: The Restored Town (Fukugen Machinami) across the river from the residence site, on the west bank of the Ichijodani River.
What to look at: Samurai houses behind earthen walls, townhouses lining the street, and everyday details down to wells and toilets.
Why it's interesting: Buildings have been reconstructed at full size on top of the excavated roads and house plots. The streets turn at right angles or meet in T-junctions for defense, and the town was laid out on a 30 m (100-shaku) grid. Remains of craftsmen's workshops and a doctor's house have also been found, so everyday life in a Sengoku town is shown in a form you can see.^{[2][5][4][17]}
Can you see it?: Visible from outsidePaid entry (9:00–17:00, last entry 16:30). Scheduled guided walks run March to November.

The valley gates and Ichijodani Castle on the mountain

Where: The Shimo-kido site at the valley's northern end, the Kami-kido at its southern end, and Mount Ichijo-shiroyama to the east, with the castle remains on top.
What to look at: The giant stones and 4 m rampart of the Shimo-kido; on the mountain, palace sites such as Senjojiki and Kannon-yashiki, baileys such as the Ichi-no-maru, and vertical trenches (tatebori) cutting down the slopes.
Why it's interesting: The town was closed off by gates at its north and south ends, and the valley itself, walled in by mountains on three sides, was the defense. Behind it, separate from the everyday residence, a mountain castle was built for emergencies, with outlying forts on the surrounding peaks. Here you can see that the valley residence and town together with the mountain fortress formed a single castle.^[2][4][6][7]
Can you see it?: Partly visibleThe gate sites are free to visit. The mountain castle is reached by four trails, 30–75 minutes one way, with steep and rocky sections; visitors are asked not to climb during or after rain, and bear precautions are needed.

At a glance for visitors

Nearest station: 3 min walk from JR Ichijodani Station
Climb: No climb
Time neededEditors' estimate: About 2 hours for the valley remains and Restored Town, half a day with the museum. Add 2–3 hours round trip to hike to the mountain castle.
Admission: Adults 330 yen (groups 260), 70+ and elementary/junior high students 100 yen (groups 80). Free with a disability certificate. Combined ticket with the museum: adults 820 yen, high school 580, elementary/junior high 240, 70+ 360.
Hours: 9:00–17:00 (last entry 16:30)
Access: Open to visitors
The valley remains (residence site, gardens, gate sites, etc.) and the mountain castle site are free to visit. The Restored Town and the museum charge admission. The mountain castle is a hike, and visitors are warned about bears (bear bells can be borrowed from the site office).

Checked: 2026-10-03

View on map Open in Google Maps Ichijodani Asakura Family Site Museum (official)Asakura Remains Preservation Association (Restored Town, Japanese)

The story of this castle

Historical record

A narrow valley ringed by mountains

Ichijodani is a valley along the Ichijodani River, a tributary of the Asuwa River, about 10 km southeast of central Fukui. Surrounded by mountains on three sides with the Asuwa River to the north, it was easy to defend, and it lay near the center of Echizen Province. Outside the northern gate was a river port, where goods from China were bought and sold.^[4]

Historical record

A century of Asakura rule

The Asakura were originally warriors from Tajima (today's northern Hyogo Prefecture) who came to Echizen in the 14th century. The first head, Takakage, used the upheaval of the Onin War to become the warlord of all Echizen, and for five generations, over a hundred years, the family ruled from Ichijodani. Takakage's family rules urged that senior retainers be made to live together in Ichijodani.^[3]

Scholarly interpretation

Valley town and mountain fortress as one castle

The castle town on the valley floor was closed off by the Kami-kido gate to the south and the Shimo-kido to the north; between them stood the lord's residence, senior retainers' houses, temples, and the homes of merchants and craftsmen. On the mountain behind the residence was Ichijodani Castle, a refuge for emergencies, with palace buildings and baileys protected by vertical trenches. Outlying forts such as Mitsumine, Makiyama and Joganji stood on the surrounding peaks, so that the whole valley was defended. Daily life and government took place in the valley, and the mountain castle was the fallback in war, a typical pattern for castles of the Sengoku period.^[2][4]

Historical record

Hosting a future shogun, defeated by Nobunaga

Yoshikage, the fifth head, welcomed the future 15th shogun, Ashikaga Yoshiaki, to Ichijodani and entertained him lavishly, but did not escort him to Kyoto. The Asakura then clashed with Oda Nobunaga, who had installed Yoshiaki as shogun, and were destroyed in 1573. Nobunaga's troops are said to have burned Ichijodani for three days and nights, reducing the town to ashes.^[3]

Historical record

A town asleep under the fields

The burned town was buried in place and survived almost intact underground. Three of the gardens, whose rocks stuck out of the ground, had long been known, but the garden of the Asakura residence was completely buried and reappeared after about 450 years when it was excavated. Roads, house plots, wells and even craftsmen's tools have been found, giving Japan its first concrete picture of a Sengoku-period castle town.^[2][4]

Historical record

Triple national designation and a new museum

Excavation began in 1967, and in 1971 an area of 278 ha including Ichijodani Castle was designated a Special Historic Site. In 1991 four gardens became Special Places of Scenic Beauty, and in 2007 some 2,343 excavated objects were named Important Cultural Properties, giving the site a rare triple national designation. The Fukui Prefectural Ichijodani Asakura Family Site Museum opened in October 2022, with a full-size recreation of the Asakura residence and a diorama of the town.^{[2][8][9][10]}

People of this castle

First Asakura head at Ichijodani

Asakura Takakage

朝倉孝景(初代)

1428–1481

The first head of the Asakura family of Ichijodani, who used the upheaval of the Onin War to become the warlord ruling all of Echizen Province. A later, fourth-generation head had the same name.

Fifth and last head

Asakura Yoshikage

朝倉義景

1533–1573

The fifth and last Asakura head at Ichijodani. He welcomed and entertained the future shogun Ashikaga Yoshiaki at Ichijodani, but lost his war with Oda Nobunaga; in 1573 the Asakura were destroyed and the town of Ichijodani was burned.

Lord

Asakura clan

朝倉氏

Lord

Maeba Yoshitsugu

桂田長俊

1541–1574

Timeline

1471
Asakura Takakage joins the Eastern Army and moves to take control of Echizen^[3]
1568
Yoshikage entertains Ashikaga Yoshiaki, including a cherry-blossom poetry party at Nanyo-ji^[2][3]
1573
The Asakura fall to Oda Nobunaga and Ichijodani is burned^[3]
1967
Excavations begin^[8]
1971
278 ha including Ichijodani Castle become a Special Historic Site^[8][2]
1991
Four gardens become Special Places of Scenic Beauty^[8][2]
2022
The prefectural Ichijodani Asakura Family Site Museum opens^[9]

Buildings and remains

The keep today

No keep was built

There was no keep (the Japan Castle Foundation lists none). Ichijodani Castle on the mountain was a medieval fortress of palace buildings and baileys, used together with the lord's residence at its foot.

The site today

The whole valley is a Special Historic Site. On the valley floor are the Asakura residence site, gardens, temple sites, an area where house plots are marked out on the ground, and the Restored Town with rebuilt houses. The castle remains on the mountain to the east are in forest reached by hiking trails. The prefectural museum stands near the northern entrance.

Main buildings

Rebuilt in wood

Restored Town (samurai houses and townhouses)

Rebuilt at full scale over excavated remains.^[5][2]

Not confirmed

Karamon gate

Not from the Asakura era. Tradition says it was built later as the gate of Shoun-in, a temple honoring Yoshikage; the present gate is thought to date from around the mid-Edo period (secondary source).^[4][12]

Site only

Asakura residence site

Moat, ramparts, foundation stones and garden survive.^[4]

Site only

Ichijodani Castle (mountain fortress)

Palace sites such as Senjojiki, Kannon-yashiki and Tonoi, baileys such as the Ichi-no-maru, and vertical trenches remain.^[2]

Key facts

Type: Castle
Setting: Mountain castle (yamajiro)built on a mountain; expect a climbEditorial article
Period: Medieval (c.1185–1570s)Editorial article
Keep (tenshu): No keep was builtthe castle never had a keepEditorial article
Built by: Asakura clanJapan Castle Foundation
Main lords: Asakura clan, Maeba YoshitsuguJapan Castle Foundation
Abandoned: 1575Wikipedia (ja)
Remains to see: Earthen ramparts, Moats, Fortified gateways (koguchi), Stone walls, Baileys / enclosures (kuruwa)Editorial article
Designation: Special Historic Site (Ichijodani Asakura Family Historic Ruins) (1971); Special Place of Scenic Beauty (four Asakura gardens) (1991); Important Cultural Properties (2,343 excavated objects) (2007)Editorial article
Selection: Japan's 100 Fine Castles No. 34Japan Castle Foundation

Visiting

Access

Open to visitors

The valley remains (residence site, gardens, gate sites, etc.) and the mountain castle site are free to visit. The Restored Town and the museum charge admission. The mountain castle is a hike, and visitors are warned about bears (bear bells can be borrowed from the site office).

Address

Kidonouchi-cho, Fukui, Fukui 910-2153 (site). Museum: 8-10 Abaka-nakajima-cho, Fukui 910-2151^[7][9]

Checked: 2026-10-03

Nearest stations and how to get there

JR Ichijodani StationJR Etsumi-Hoku Line (Kuzuryu Line)

about 3 min walk · No climb

3 minutes on foot to the museum and about 10 minutes to the Shimo-kido gate. About 15 minutes by train from Fukui Station. Rental bicycles are available at the museum.^[10][13]

Checked: 2026-10-03

Hours and admission

Restored Town (Fukugen Machinami)

Hours: 9:00–17:00 (last entry 16:30)
Closed: New Year holidays (December 28 – January 4)
Admission: Adults 330 yen (groups 260), 70+ and elementary/junior high students 100 yen (groups 80). Free with a disability certificate. Combined ticket with the museum: adults 820 yen, high school 580, elementary/junior high 240, 70+ 360.^[5][15]

Checked: 2026-10-03

Fukui Prefectural Ichijodani Asakura Family Site Museum

Hours: 9:00–17:00 (last entry 16:30)
Closed: Mondays and the New Year holidays (subject to change; see the museum calendar)
Admission: Permanent exhibition: adults 700 yen, high school 400, elementary/junior high 200, 70+ 350 (20% off for groups of 20+). Special exhibitions cost extra.^[9]

Checked: 2026-10-03

By car / parking

About 10 minutes from Fukui IC on the Hokuriku Expressway via Route 158 (to the museum). The museum lot (140 cars, 10 buses) and several free parking areas within the site.^[10][14]

Checked: 2026-10-03

Grounds opening hours

No set hours for the outdoor parts of the site could be confirmedChecked: 2026-10-03

Time neededEditors' estimate

About 2 hours for the valley remains and Restored Town, half a day with the museum. Add 2–3 hours round trip to hike to the mountain castle.

Steps, slopes and footing

The valley floor is nearly flat. Four trails lead to the mountain castle (Shimo-kido 60–75 min one way, Umadashi 40–60, Eirinzuka 50–60, Sanmandani 30–45), with steep sections and slippery exposed rock.^[6][7]

Wheelchairs and strollers

The museum provides accessibility information and lends strollers. Accessibility across the wider site is not confirmed.^[9]Checked: 2026-10-03

Toilets and rest

Not confirmed

English signs / audio guide

The museum's website has English labels. On-site English signage and guiding are not confirmed.^[10]

Seasons

The museum notes that the Suwa-yakata-ato garden is beautiful in autumn colors. Nanyo-ji is where Yoshikage is said to have viewed cherry blossoms with Yoshiaki.^[2]

Photography

Not confirmed

Works, closures and restrictions

Bears and their signs have been reported around Ichijodani, so precautions are required when hiking to the mountain castle. Visitors are asked not to climb during or after rain.^[7]Checked: 2026-10-03

Suggested routes

Guided walk: Restored Town to the Karamon gate 60 min

Sign up at the Restored Town's south entrance (at least 10 minutes before departure)
Tour the restored samurai houses and townhouses
Cross the Ichijodani River to the Asakura residence site
Finish at the Karamon gate

Scheduled guided walks by the Asakura Remains Preservation Association (daily at 10:00, 12:00 and 14:00 from March 1 to November 30; 500 yen per person; no booking needed), per Fukui City's notice updated October 2022.

Around the castle

Experience

Ichijo Falls

A waterfall about 17 m high, said to be where the swordsman Sasaki Kojiro trained. Nearby is the site of the training hall of Toda Seigen, a sword master who served the Asakura.^[16]

Checked: 2026-10-03

Editors' guide

An editorial guide based on sources and confirmed information — not a first-hand visit report.

Who will enjoy it

For anyone who wants to understand how a Sengoku-period castle and town worked, as opposed to castles with keeps; for those interested in gardens and archaeology; and for hikers.

What makes it interesting

Walk the valley to see how the residence, samurai houses and townhouses were arranged and where the gates closed it off, then look up at the mountain to the east: you will see how the valley town and the mountain fortress made up one castle. Compare the rugged rocks of the Yudono-ato garden with the more graceful Suwa-yakata-ato garden.

Before you go

The site is long from north to south and the sights are spread out, so allow plenty of time. The museum closes on Mondays. If you plan to climb to the mountain castle, dress for hiking, take bear precautions, and avoid rainy days.

Ways to enjoy it

Start at the museum by the station, with its full-size recreation of the Asakura residence and diorama of the town, before heading into the valley; the empty flat ground will come alive in your imagination. In the Restored Town, join a scheduled guided walk to hear more about everyday life.

Photos

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Open questions

The site is listed among Japan's 100 Fine Castles as "Ichijodani Castle", but the listing covers the whole Ichijodani Asakura Family Historic Ruins, including the valley town, the residence and the mountain castle.
Museum materials give the mountain's height as both 473 m and 475 m. The mountain castle may date from the first half of the 15th century (secondary source).
The origin of the Karamon (as a gate of a temple honoring Yoshikage) and its rebuilding date come from tradition and a secondary source.
The accounts of a three-day burning and of Yoshikage building the Suwa garden for his wife are traditions.
Guided-walk details come from a city page updated in 2022. Toilet locations, site-wide accessibility and photo rules could not be confirmed.