清洲城·Kiyosu-jo
Where Nobunaga launched his conquest of Japan and where Hideyoshi's genius at the 1582 conference made him the successor — Japan's most consequential castle for two of its greatest leaders.
¥200
Last entry 16:00
Bus also available
Adult ¥400, Child ¥200.
Defense Overview
This castle is hard to attack because it combines managed outer defenses on relatively level ground with enough defensive depth to slow attackers before the center.
An attacker would not simply arrive at the center on open flat ground. They would have to cross water barriers or moat lines and push through successive outer areas before the core.
Overall score
58/100
Estimated range
52–64
Confidence
A
Strong multi-source support
Radar view
This estimate combines broad terrain, approach, layout, and route-control signals. It is meant to explain the castle's defensive logic in plain English, not reconstruct a single historical attack.
Terrain Advantage
How much the terrain itself seems to help: height, slope, ridges, cliffs, water edges, and limited approach directions.
10/20
Entrance Defense
How awkward and dangerous the first entry looks: gates, bridge or moat crossings, chokepoints, and forced turns.
11/20
Internal Complexity
How hard it seems to keep pushing after entry: layered baileys, depth, compartmentalization, and repeated defensive lines.
12/20
Siege Endurance
A rough sense of long-hold potential: moats, water access, space, storage plausibility, and defensive staying power.
14/20
Strategic Oversight
How much the castle appears to command nearby roads, plains, rivers, basins, harbors, or town approaches.
11/20
Kiyosu Castle is an easy 15-minute JR ride from Nagoya and pairs perfectly with Nagoya Castle for a full day of Owari Province history. The museum focuses on Nobunaga's early career and the Kiyosu Conference — well-told stories that illuminate how two of Japan's greatest figures made decisions at this site.
Kiyosu Castle was Oda Nobunaga's primary residence and military headquarters from 1555 to 1563 — the period when the young lord transformed from a minor Owari Province warlord into the most powerful figure in Japan. It was from Kiyosu that Nobunaga launched the Battle of Okehazama (1560), where he defeated the seemingly invincible Imagawa Yoshimoto against all odds.
In 1582, immediately after the Honnoji Incident, the most powerful generals of the Oda realm gathered at Kiyosu Castle. Toyotomi Hideyoshi, fresh from defeating Akechi Mitsuhide at Yamazaki, seized control of the meeting and effectively outmaneuvered senior generals. In a single conference, Hideyoshi transformed himself into the dominant figure in post-Nobunaga Japan.
In 1610, Kiyosu Castle was dismantled and its materials physically moved to help construct Nagoya Castle. The current castle tower, built in 1989, is a concrete reconstruction that sits across the Gojo River from the original castle site. Despite this, the tower and its museum are worthwhile for the Nobunaga and Hideyoshi historical content.
Visitor tip
The 1989 concrete reconstruction sits across the Gojo River from the original castle site — look across the river bridge to see where the actual castle stood. The tower museum has informative exhibits about Nobunaga's early career and the Kiyosu Conference. Only 15 minutes from Nagoya Station.
Flatland castle
Flatland castle (built on low ground beside the Gojo River on the Nobi Plain)
Radial layout
Square-style — a relatively compact flatland castle layout suited to the Nobi Plain terrain
Concrete reconstruction (1989) — built near but not on the original castle site. Three stories, housing a museum about Oda Nobunaga and Kiyosu history.
Natural stone stacking
The original Kiyosu Castle used the Gojo River as its primary western defense, with earthen banks and wooden palisades forming the main defensive walls.
The Gojo River served as a natural moat on the castle's western side. Water moats extended around the other compounds.
Gojo River Water Defense
The Gojo River provided a natural water barrier on the castle's western side.
Nobi Plain Control
Kiyosu Castle controlled the agricultural heartland of Owari Province — the most productive region in the Tokai area. This economic base was the foundation of Nobunaga's military power.
The Shiba clan, shugo (military governor) of Owari Province, constructs Kiyosu Castle as the administrative center of the province.
Oda Nobunaga captures Kiyosu Castle and establishes it as his primary residence and headquarters. The young Nobunaga is 21 years old.
From Kiyosu, Nobunaga launches his surprise attack on Imagawa Yoshimoto at the Battle of Okehazama — winning against a force many times larger.
The Kiyosu Conference — the most politically consequential meeting of the Sengoku era. Hideyoshi's political maneuvering effectively crowns him as Nobunaga's successor.
Tokugawa Ieyasu orders Nagoya Castle constructed. Kiyosu Castle is dismantled — its timbers and stones physically moved to Nagoya in what locals called 'Kiyosu-goshi' (the Kiyosu Moving).
A concrete reconstruction of the castle tower is built near the original site as a local tourism attraction and historical museum.
The 2014 TV drama about Oda Nobunaga features Kiyosu Castle extensively as Nobunaga's base of operations.
Miike Takashi's 2013 comedy film dramatizes the 1582 Kiyosu Conference with an all-star cast.
Year-round. Spring cherry blossoms at the adjacent park.
1 hour
From the castle, look across the Gojo River bridge to the small signs marking the original castle site — the actual Kiyosu Conference happened on that opposite bank. The Kiyosu Kaigi movie (2013, directed by Miike Takashi) is an entertaining introduction to the 1582 meeting — watch it before visiting.
Adult ¥400, Child ¥200.
Closed Monday (next day if Monday is holiday). Closed December 29–January 3.
名古屋城 · Nagoya-jo
📍 Aichi — Chubu
Nagoya Castle is mid-renovation — visit now for the stunning reconstructed palace, return in a few years for the completed wooden tower.
犬山城 · Inuyama-jo
📍 Aichi — Chubu
The oldest surviving castle tower in Japan — compact, dramatic, and perched above a river just as it was when Oda Nobunaga's family built it in 1537.
小牧山城 · Komakiyama-jo
📍 Aichi — Chubu
Nobunaga's first castle — where the stone wall revolution may have begun — and the headquarters of the only campaign Hideyoshi ever lost.
The nearest station is Kiyosu Station (JR Tokai-do Main Line / JR Kansai Main Line — one stop from Nagoya). From there it is about 20 minutes on foot. Only 15 minutes from central Nagoya by JR — very easy day trip.
Adult admission is ¥400 and child admission is ¥200.
Kiyosu Castle is an easy 15-minute JR ride from Nagoya and pairs perfectly with Nagoya Castle for a full day of Owari Province history. The museum focuses on Nobunaga's early career and the Kiyosu Conference — well-told stories that illuminate how two of Japan's greatest figures made decisions at this site.
09:00 to 16:30, last entry 16:00.
Plan for about 1 hour, depending on how closely you want to explore the grounds.