CastleHilltop castle (hirayamajiro)Japan's 100 Fine Castles No. 13
What makes this castle distinctive
When the earthquake brought its stone walls down, every stone was put back exactly where it came from.
Why?
In the 2011 Great East Japan Earthquake, Komine's stone walls collapsed in 10 places and badly bulged in 6 more. The city rebuilt them over eight years using traditional Edo-period techniques, returning each fallen stone to its original spot, and finished in March 2019. Shirakawa City says this approach has since informed repairs at Kumamoto and Marugame castles.[1]
The northeast corner of the main enclosure (honmaru)
What to look at
The three-story turret (yagura) itself, and the wooden pillars and beams you can see inside
Why it's interesting
Komine never had a main keep (tenshu); this turret was the castle's landmark. It burned in the Boshin War of 1868, and in 1991 it was rebuilt in wood using an 1808 survey drawing made under lord Matsudaira Sadanobu, the Shirakawa Castle Turret Drawings, together with excavation results. It stands about 14 m tall and uses more than 13,000 roof tiles.[1][2][7][8]
Can you see it?
Visible from outsideYou can go inside. Open 9:00–17:00 from April to September and 9:00–16:00 from October to March; closed December 29 – January 3. Admission fee not confirmed.
The main enclosure and the narrow terrace (obi-guruwa) that wraps around it
What to look at
The tall stone walls around the main enclosure, including the sections rebuilt after the earthquake
Why it's interesting
Both the main and second enclosures were walled entirely in stone, unusual for a castle in Japan's northeast. The sections that fell in the earthquake were rebuilt by putting the original stones back in place. The terrace around the main enclosure was closed for repairs for a long time and reopened in April 2022 after about 11 years.[1][2][7][10]
Can you see it?
Visible from outsideVisible from outside. You can go up into the main enclosure while the temporary stairway and Ya-no-mon gate are open: 8:30–17:30 from April to September, 8:30–16:30 from October to March.
03
Shimizu Gate, now being rebuilt
Where
The front of the main enclosure. During the work, you enter the main enclosure by a temporary stairway about 60 m to the west.
What to look at
A gate about 11 m high and 14 m wide taking shape in wood
Why it's interesting
Shimizu Gate was the front gate of the main enclosure. Like the turret, it is being rebuilt in wood based on the 1808 drawings and excavation results, with donations gathered through the city's "Komine Castle One-Stone Lord" project. Full-scale work began in May 2024, and completion is planned for March 2027, a year later than first scheduled.[1][2][3][10]
Can you see it?
Partly visibleThe gate is closed and cannot be passed through. The city's website posts updates on the work.
At a glance for visitors
Nearest station
from JR Shirakawa Station
Climb
Some climbing
Time neededEditors' estimate
About 30 minutes for the turret alone; allow around 1.5 hours to walk the walls and visit the history museum.
Shiroyama Park is free to walk around. The main enclosure is reached via a temporary stairway and the Ya-no-mon gate, open 8:30–17:30 from April to September and 8:30–16:30 from October to March. Shimizu Gate is closed for rebuilding; use the temporary stairway about 60 m to the west. The Japan 100 Castles stamp is kept at four places: the Shirakawa Tourist Station, the Ninomaru Chaya teahouse, the three-tiered turret, and the Komine Castle History Museum (over the New Year holidays it moves to the security office of City Hall).
According to Shirakawa Fudoki, an Edo-period local history, the castle began when Yuki Chikatomo set up a stronghold on a hill called Komine-ga-oka sometime between 1340 and 1369. The Shirakawa Yuki clan's main base was originally Shirakawa Castle, about 3 km to the east; they are thought to have moved it to Komine after about 1504–1520. The main enclosure stands about 500 m north of today's JR Shirakawa Station.[1]
02
Historical record
Niwa Nagashige rebuilt it in stone
In 1590 the Yuki clan lost their lands for failing to join Toyotomi Hideyoshi's siege of Odawara, and for the next 37 years Shirakawa served as a branch castle of the lords of Aizu. In 1627 Niwa Nagashige arrived as the first lord of the Shirakawa domain (han). From 1629 he spent about four years on a major rebuild, finished in 1632, walling the main and second enclosures in stone and reshaping the area into the castle's present layout.[1][7]
03
Scholarly interpretation
Guarding the gateway to the north
After the Niwa family, seven families and 21 lords in all, each closely tied to the Tokugawa shoguns, held the castle. Shirakawa sits at the entrance to Japan's northeast, and the city describes Komine as the shogunate's check on the northern provinces. Matsudaira Sadanobu, famous for the Kansei Reforms, was among its lords.[1][7]
04
Historical record
Burned in the Boshin War
When the Abe family was moved elsewhere in 1867, Shirakawa came under direct shogunate rule and the castle was placed in the care of the Nihonmatsu domain. The next year, in the Battle of Shirakawa during the Boshin War, forces of the northern domains' alliance and the new imperial government fought fiercely here, and most of the castle burned.[1][7]
05
Historical record
What survived: walls and moats
In the Meiji era, the Tohoku Main Line railway and a station were built through the outer enclosure in 1887, and the area around the main enclosure was sold to the town of Shirakawa in 1893. Almost no buildings survived; the stone walls and moats carry the castle's shape. The drum turret that stood near the entrance to the second enclosure was moved away and survives as the former Komine Castle Drum Turret, a Shirakawa City Important Cultural Property.[1][7][8]
06
Historical record
Rebuilt in wood, repaired after the quake
Work to turn the site into a park began in the 1980s. The three-tiered turret was rebuilt in wood in 1991 and the Mae Gomon gate in 1994. The castle became a National Historic Site in 2010, but the following year's earthquake brought down large sections of its walls. Repairs began in December 2011 and were completed in March 2019. Work is now under way to rebuild Shimizu Gate, the front gate of the main enclosure, in wood.[1][3][7]
There was no main keep; the three-tiered turret in the main enclosure served as the castle's symbol. It burned in 1868 and was rebuilt in wood in 1991.
The site today
The main and second enclosures form Shiroyama Park, just north of JR Shirakawa Station; part of the former outer enclosure is now the station and railway. Rebuilding of Shimizu Gate is under way.
Main buildings
Rebuilt in wood
Sanju Yagura (three-tiered turret)
Rebuilt in wood in 1991 from the 1808 turret drawings and excavation results. Three stories, about 14 m tall. Open to visitors.[1][7]
Rebuilt in wood
Mae Gomon (gate)
Rebuilt in wood in 1994 from the same drawings and excavation results.[1][7]
Rebuilt in wood
Shimizu Gate
Being rebuilt in wood; completion planned for March 2027. Closed during the work.[1][3]
Original, relocatedShirakawa City Important Cultural Property
Former Drum Turret of Komine Castle
A turret from near the second-enclosure entrance that survived by being moved off site. It was moved again and restored in 2022.[7][8]
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)Editorial article
Keep (tenshu)
No keep was builtthe castle never had a keepEditorial article
Stone walls, Earthen ramparts, Moats, Turrets or turret bases, Gates, Baileys / enclosures (kuruwa)Editorial article
Designation
National Historic Site (Komine Castle ruins) (2010)Editorial article
Selection
Japan's 100 Fine Castles No. 13Japan Castle Foundation
Visiting
Access
Open to visitors
Shiroyama Park is free to walk around. The main enclosure is reached via a temporary stairway and the Ya-no-mon gate, open 8:30–17:30 from April to September and 8:30–16:30 from October to March. Shimizu Gate is closed for rebuilding; use the temporary stairway about 60 m to the west. The Japan 100 Castles stamp is kept at four places: the Shirakawa Tourist Station, the Ninomaru Chaya teahouse, the three-tiered turret, and the Komine Castle History Museum (over the New Year holidays it moves to the security office of City Hall).
There is a parking lot for Komine Castle / Shiroyama Park (capacity and fees not confirmed).[1]
Checked: 2026-10-03
Grounds opening hours
Park hours not confirmed. Access to the main enclosure follows the opening hours of the temporary stairway and Ya-no-mon gate: 8:30–17:30 (April–September), 8:30–16:30 (October–March).[2]Checked: 2026-10-03
Time neededEditors' estimate
About 30 minutes for the turret alone; allow around 1.5 hours to walk the walls and visit the history museum.
Steps, slopes and footing
The main enclosure sits about 15 m above the second enclosure and is reached by stairs (a temporary stairway during the gate work).[1][2]
Wheelchairs and strollers
Not confirmedChecked: 2026-10-03
Toilets and rest
Not confirmed
English signs / audio guide
Shirakawa City's English page offers only machine translation; no dedicated English guide to the castle was found.
Seasons
Plum blossoms in March and about 150 cherry trees in April. Beside the turret grows the Otome-zakura, a second-generation cherry tied to a local legend. In 2026 the blossoms were lit up April 3–19, from dusk until 22:00.[5]
Photography
Not confirmed
Works, closures and restrictions
Shimizu Gate is being rebuilt (completion planned for March 2027). It cannot be used as an entrance; use the temporary stairway about 60 m to the west.[2][3]Checked: 2026-10-03
A park created in 1801 by Matsudaira Sadanobu, lord of Shirakawa, under the idea that people of every class should be able to enjoy it together; it had no fences. A National Historic Site and Place of Scenic Beauty, south of the castle.[6]
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
Good for lovers of stone walls, anyone who wants to walk inside a turret rebuilt in wood, and those interested in how heritage sites recover from disasters. It is just north of the station, making it an easy stop on the Tohoku Main Line.
What makes it interesting
Start with the three-tiered turret, built in wood from Edo-period survey drawings; inside it feels nothing like the concrete keeps that only copy a castle's outside. Then walk around the walls of the main enclosure to take in the scale of the stonework rebuilt after the earthquake.
Before you go
The castle never had a main keep; the turret is its symbol. Shimizu Gate is under construction until March 2027, so enter the main enclosure by the temporary stairway to the west. Access hours change with the season and end at 16:30 in winter.
Ways to enjoy it
Look north as you leave the station and you can spot the turret. Spring cherry blossoms and autumn leaves both set off the stone walls. If you have time, continue to Nanko Park, created by Matsudaira Sadanobu, for another side of the Shirakawa domain's history.
Photos
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Open questions
The founding date (around 1340–1369, by Yuki Chikatomo) comes from Shirakawa Fudoki, an Edo-period local history. When the Yuki clan moved their base to Komine is also an estimate.
Claims that the turret's pillars use cedar from a Boshin War battlefield and still show bullet marks, and that it was the first wooden reconstruction of a keep-equivalent building, appear on Wikipedia and elsewhere but could not be confirmed in official sources.
The story of the girl sacrificed to steady the walls, behind the Otome-zakura cherry, is a legend.
Admission fees for the turret and the history museum, park hours, walking time from the station, parking details, accessibility information and English guidance could not be confirmed. An official page for the Komine Castle History Museum could not be found.
The tourism association lists the turret as open 9:00–17:00 from April to October, while the city's page (updated August 2026) says April to September. This article follows the city.
Sengoku40CC BY-SA 3.0Wikimedia Commons
