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Chiba · Sakura

Sakura Castle

佐倉城

Sakura, Chiba

CastleHilltop castle (hirayamajiro)Japan's 100 Fine Castles No. 20

What makes this castle distinctive

A castle of earth and water, with no stone walls, whose lords included nine of the shogun's senior councilors.

Why?

Sakura Castle made use of the tip of a plateau and was defended by water-filled moats, dry moats and earthen ramparts. Because it guarded the approach to Edo (Tokyo), it was given to trusted hereditary daimyo (fudai), and lords who rose to top posts in the shogunate tended to be moved here. Nine of its lords served as roju, the shogun's senior councilors, which Sakura City says is more than any other domain in Japan. No stone walls were used.^[1][2][13]

Three things not to miss

The huge dry moat of the umadashi

Where: Inside Sakura Castle Park (check the park walking map or the on-site maps for its exact location).
What to look at: The width and depth of the grass-covered dry moat, and the small enclosure (umadashi) it wraps around.
Why it's interesting: An umadashi is a small fortified enclosure placed in front of a gate, used as a launching point for sorties. Sakura Castle used no stone walls, so its defenses were made by digging and piling up earth. The park itself calls this "a must-see," and it shows the character of an earthen castle better than anywhere else here.^[2][1][13]
Can you see it?: Visible from outsideFreely visible inside the park.

The keep site and the 400-year-old "married couple" mokkoku tree

Where: The keep site in the former main enclosure (honmaru).
What to look at: The earthen mound where the keep (tenshu) once stood, and the big mokkoku tree beside it.
Why it's interesting: The main enclosure once held a keep and copper-roofed and corner turrets, but none of these buildings survive. Beside the keep site stands the "married couple" mokkoku, a Chiba Prefecture Natural Monument 11.6 m tall. It was originally three trees growing together, two of them joined at the base; the two that had rotted were cut down, and the remaining one is being protected.^[1][2][4]
Can you see it?: Visible from outsideFreely visible inside the park.

The moat-ringed south and west outworks

Where: The low ground on the west and south sides of the park, toward Ubagaike pond.
What to look at: The outworks (demaru, small enclosures projecting from the main castle) that sit like islands surrounded by water moats.
Why it's interesting: Sakura Castle sits on the tip of a plateau jutting into lowlands, with Lake Inba to the north and the Kashima and Takasaki rivers to the west and south. The outworks and water moats guarded that low side. The city lists the south and west outworks as must-sees, and the castle's only surviving building, a small yakuimon-style gate, stands in the west outwork.^[1][2]
Can you see it?: Visible from outsideFreely visible inside the park.

At a glance for visitors

Nearest station: 20 min walk from Keisei-Sakura Station
Climb: Some climbing
Time neededEditors' estimate: About an hour for the castle park alone; half a day if you also visit the history museum.
Admission: Not confirmed (not stated officially)
Hours: April–October 9:00–17:00; November–March 9:00–16:30
Access: Open to visitors
The site is Sakura Castle Park and is free to walk around. The city notes that some areas of the park are off-limits, so follow the signs on site. The Japan 100 Castles stamp is inside and outside the door of the Sakura Castle Park Center at the park's east end and is available 24 hours a day, every day.

Checked: 2026-10-03

View on map Open in Google Maps Sakura City: Sakura Castle Park (Japanese)Sakura City: Sakura Castle and the 100 Castles stamp (Japanese)National Museum of Japanese History

The story of this castle

Historical record

A plateau tip between lake and rivers

Sakura Castle stands at the western tip of a plateau about 30 m above sea level. To the north lay Lake Inba, and to the west and south the lowlands of the Kashima and Takasaki rivers. The castle used this terrain, adding water moats, dry moats and earthen ramparts, while samurai houses and merchant streets were laid out on the plateau running east to form the castle town.^[1][2]

Historical record

Built by Doi Toshikatsu on an older fort

The plateau was called Kashimayama, and tradition says that Kashima Mototane, a member of the Chiba clan, built a fort here during the Warring States period. Doi Toshikatsu, who became lord of Sakura in 1610, began building the castle in 1611 and finished it after about seven years.^[1][3][5]

Historical record

Guarding Edo's east, a home for senior councilors

Sakura was seen as a key castle guarding the eastern side of Edo, and powerful hereditary daimyo were made its lords. Many of them held top shogunate posts such as roju, and the city says its nine senior councilors are the most of any domain. Lords changed often at first, but after Hotta Masasuke arrived in 1746 the Hotta family ruled until the Meiji Restoration.^[1][2][5]

Historical record

Hotta Masayoshi and the opening of Japan

Hotta Masayoshi, lord in the final years of the shogunate, served twice as roju and is remembered for steering Japan toward opening its doors to the world. In Sakura he expanded the domain school and brought in Western learning, especially Dutch studies, and in 1843 the Dutch-trained doctor Sato Taizen opened Juntendo, a medical school and clinic, in the castle town. A statue of Masayoshi stands in front of the Sankeitei tea house in the castle park.^[5][6]

Historical record

An army base replaced the buildings

In 1873 an Imperial Army post was set up inside the castle, and the castle buildings were pulled down one after another. The site then housed the 2nd and later the 57th Infantry Regiment (the "Sakura Regiment") and remained military land until 1945. The only surviving castle building is a small yakuimon gate in the west outwork. The plateau west of the former main gate, however, keeps its landforms well, so you can still trace the earthen castle.^[1][2][3]

Historical record

A castle park and a national history museum

The castle site was designated a city Historic Site in 1962. Full-scale work on the park began in 1979, restoring the water moats and tidying the main enclosure and outwork sites. The National Museum of Japanese History stands next to the park. At the park's east end, the Sakura Castle Park Center displays photographs taken in the early Meiji era, a model of the castle and excavated objects. Sakura was named one of Japan's Top 100 Castles in 2006, the only one in Chiba Prefecture.^{[1][2][3][10]}

People of this castle

Builder of the castle

Doi Toshikatsu

土井利勝

1573–1644

An early Edo-period daimyo. He became lord of Sakura in 1610 and began building Sakura Castle the following year.

Late-Edo lord of Sakura and senior councilor who pushed for opening Japan

Hotta Masayoshi

堀田正睦

1810–1864

Lord of Sakura in the last decades of the shogunate. He served twice as a senior councilor (roju) and is known for leading Japan toward opening to the world.

Lord

Matsudaira clan

松平氏

Lord

Ishikawa clan

石川氏

Lord

Toda clan

戸田氏

Lord

Ōkubo clan

大久保氏

Lord

Inaba clan

稲葉氏

Lord

Hotta clan

堀田氏

Built

Chiba clan

千葉氏

Lord

Doi clan

土井氏

Lord

Chiba Kunitane

千葉邦胤

1557–1585

Timeline

1611
Doi Toshikatsu begins building Sakura Castle^[1][3]
1746
Hotta Masasuke arrives; the Hotta family rules until the Meiji era^[5]
1873
An army post is set up; the castle buildings are gradually demolished^[3]
1962
Designated a Sakura City Historic Site^[3]
1979
Full-scale development of Sakura Castle Park begins (fiscal year)^[2]
1983
The National Museum of Japanese History opens next to the park (per the city)^[2]
2006
Selected as one of Japan's Top 100 Castles (the only one in Chiba)^[1][10]

Buildings and remains

The keep today

Keep lost

The main enclosure once had a keep, but it no longer exists. Only the keep site and an information board remain.

The site today

Most of the castle site is Sakura Castle Park, a city park where dry moats, earthen ramparts, water moats and the keep site survive as landforms. The National Museum of Japanese History stands on the northwest side, and some remains from the site's army barracks era also survive.

Main buildings

Original

Yakuimon gate (west outwork)

According to the city, the only castle building still standing on the site; a small gate.^[1]

Lost

Keep, copper turret and corner turret

Stood in the main enclosure; none survive.^[1]

Not confirmed

Sakura Castle Park Center

Not a castle building: a castle-style park office with old photographs, a model and excavated objects, and the 100 Castles stamp.^[1][2]

Key facts

Type: Castle
Setting: Hilltop castle (hirayamajiro)built on a low hill rising from the plainEditorial article
Period: Medieval (c.1185–1570s), Early modern (1570s–1871), ModernEditorial article
Keep (tenshu): Keep lostthe castle had a keep, but it no longer stands (its stone base may remain)Editorial article
Built by: Doi Toshikatsu, Chiba clanJapan Castle Foundation
Main lords: Doi Toshikatsu, Matsudaira clan, Ishikawa clan, Toda clan, Ōkubo clan, Inaba clan, Hotta clan, Doi clan, Chiba KunitaneJapan Castle Foundation
Abandoned: 1873Wikipedia (ja)
Remains to see: Moats, Earthen ramparts, Baileys / enclosures (kuruwa), Keep base (tenshudai), GatesEditorial article
Designation: Sakura City Historic Site (Sakura Castle ruins) (1962); Chiba Prefecture Natural Monument (the "married couple" mokkoku tree) (1952)Editorial article
Selection: Japan's 100 Fine Castles No. 20Japan Castle Foundation

Visiting

Access

Open to visitors

The site is Sakura Castle Park and is free to walk around. The city notes that some areas of the park are off-limits, so follow the signs on site. The Japan 100 Castles stamp is inside and outside the door of the Sakura Castle Park Center at the park's east end and is available 24 hours a day, every day.

Address

Jonai-machi, Sakura, Chiba (Sakura Castle Park)^[2]

Checked: 2026-10-03

Nearest stations and how to get there

Keisei-Sakura StationKeisei Main Line

about 20 min walk · Some climbing

About 20 minutes on foot to the park center. Or take a bus from the South Exit (bound for Tamachi Shako) to Kokuritsu Hakubutsukan Iriguchi or Kokuritsu Rekishi Minzoku Hakubutsukan, then walk about 5 minutes.^[1][2][8]

Checked: 2026-10-03

JR Sakura StationJR Sobu Line, Narita Line

about 25 min walk · Some climbing

About 25 minutes on foot to the park center. Or take a bus from stop 1 at the North Exit (bound for Tamachi Shako) to Kokuritsu Hakubutsukan Iriguchi or Kokuritsu Rekishi Minzoku Hakubutsukan, then walk about 5 minutes.^[1][2][8]

Checked: 2026-10-03

Hours and admission

Sakura Castle Park Center

Hours: April–October 9:00–17:00; November–March 9:00–16:30
Closed: January 1–3
Admission: Not confirmed (not stated officially)^[1]

Checked: 2026-10-03

National Museum of Japanese History

Hours: March–September 9:30–17:00; October–February 9:30–16:30 (last entry 30 minutes before closing)
Closed: Mondays (if a holiday, open and closed the next weekday), year-end holidays (December 27, 2026 – January 5, 2027), and other occasional closures
Admission: Adults 900 yen, university students 500 yen, free for high school students and younger (groups of 20+: 800 / 400 yen)^[7]

Checked: 2026-10-03

By car / parking

The park has its own car park (capacity and fees not confirmed). The lot of the neighboring National Museum of Japanese History is for museum visitors only, and the city asks park visitors to use the park lot. In cherry blossom and iris season the lots fill and roads get congested, so public transport is recommended.^[2]

Checked: 2026-10-03

Grounds opening hours

Not confirmed (the city says the stamp is available 24 hours)^[1]Checked: 2026-10-03

Time neededEditors' estimate

About an hour for the castle park alone; half a day if you also visit the history museum.

Steps, slopes and footing

The site spans the plateau top and the low ground below; reaching the outworks and Ubagaike pond means walking down slopes.^[1][2]

Wheelchairs and strollers

Not confirmedChecked: 2026-10-03

Toilets and rest

Not confirmed

English signs / audio guide

English signage in the castle park is not confirmed. The history museum offers a free smartphone audio guide app for its permanent galleries (languages not confirmed).^[7]

Seasons

About 740 cherry trees (around 1,100 including the museum grounds) bloom from late March to early April. Some 9,000 irises flower in early to mid June, plums in late February to early March, and maples turn from mid November to mid December.^[2]

Photography

Photo rules for the castle park are not confirmed. In the history museum's permanent galleries, photos for personal use are allowed (no flash or tripods; some areas prohibited). Special exhibition rooms do not allow photography.^[7]

Works, closures and restrictions

The National Museum of Japanese History reopened as usual on September 30, 2026, but the Atago-zaka slope leading up to it is closed after a landslide. Visitors are asked to use a detour, and the museum's own car park is unavailable (announced September 29, 2026).^[9]Checked: 2026-10-03

Around the castle

Castle town

Sakura Samurai Residences

Three late-Edo houses of Sakura domain samurai, on a lane lined with earthen banks and hedges. Open 9:00–17:00, closed Mondays. Adults 250 yen (600 yen combined ticket with the Former Hotta Residence and Sakura Juntendo Memorial Hall). About 15 minutes on foot from JR Sakura Station.^[11]

Checked: 2026-10-03

Garden

Former Hotta Residence (Sakura Garden)

Meiji-era residence of Hotta Masatomo, the last lord of Sakura; an Important Cultural Property with a garden designated a Place of Scenic Beauty. Open 9:30–16:30, closed Mondays; adults 350 yen.^[12]

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 visitors who want to see a castle shaped by digging and piling earth rather than by stone walls and towers. Combined with the National Museum of Japanese History next door, history fans can easily spend a whole day. In cherry and iris season it is also a popular park.

What makes it interesting

Start with the depth and width of the umadashi dry moat. Then visit the keep site and its mokkoku tree. Finally, walk down to the moat-ringed outworks to see how the defenses differ between the plateau top and the lowland below.

Before you go

Almost none of the castle buildings remain. The park center at the east end has early Meiji photos and a model, so stop there first to picture the castle. The Atago-zaka slope to the museum is closed after a landslide (announced September 29, 2026), so check the latest notices before you go.

Ways to enjoy it

Compare the old photos from the park center with the information boards around the site to locate the vanished gates and turrets. In front of the Sankeitei tea house, look for the statue of Hotta Masayoshi, the lord who helped open Japan.

Photos

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Open questions

The statement that no stone walls were used comes from Wikipedia (a secondary source); the city describes the defenses as water moats, dry moats and earthen ramparts.
Sources differ on the completion date: the city's parks division gives 1611 to 1616, while its culture division says seven years from January 1611 to 1617.
That Kashima Mototane built an earlier fort here is tradition; another theory credits the Hojo clan with a fort built in 1585 (per Wikipedia, a secondary source).
The keep is said to have burned down in 1813 (per Wikipedia); we could not confirm this in official sources.
The opening year of the history museum is given as 1983 on the city's park page and as 1981 on Wikipedia.
The claim that Sakura's nine senior councilors are the most of any domain comes from Sakura City.
Park parking capacity and fees, opening hours, restricted areas, toilets, accessibility and English signage could not be confirmed.