Qualla: Kanagasaki Castle

Kanagasaki Castle: Introduction

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 立花左近, CC BY-SA 3.0. Three hundred warriors trapped on an 86-meter hill, their food exhausted, their horses slaughtered for meat, stared down at the armies of Ashikaga Takauji encircling them below. The year was 1337, and Kanagasaki Castle -- perched above what is now the port city of Tsuruga in Fukui Prefecture -- was about to witness one of the most harrowing sieges in Japanese medieval history. When the end came, Prince Takanaga and the son of the great loyalist general Nitta Yoshisada chose suicide over capture. Two centuries later, this same modest hilltop would witness another pivotal battle, this time involving the most famous warlords of the Sengoku period. For a castle whose ruins today amount to little more than earthen mounds and dry moats, Kanagasaki punches far above its weight in the annals of Japanese warfare.

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Image: 立花左近 | CC BY-SA 3.0

Kanagasaki Castle: Where the Genpei War Left Its Mark

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 立花左近, CC BY-SA 3.0. The fortification on this hill above Tsuruga Bay dates to the late twelfth century, when Taira no Michimori built defenses here during the Genpei War, the civil conflict between the Taira and Minamoto clans that reshaped Japan. Michimori, who lived from 1153 to 1184, chose the si...

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Image: 立花左近 | CC BY-SA 3.0

Kanagasaki Castle: The Siege That Broke an Emperor's Cause

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 立花左近, CC BY-SA 3.0. The castle's darkest chapter unfolded during the wars between the rival Northern and Southern Courts. In 1337, forces loyal to Nitta Yoshisada -- champion of Emperor Go-Daigo's Southern Court -- found themselves trapped at Kanagasaki by the armies of Ashikaga Takauji. For three m...

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Image: 立花左近 | CC BY-SA 3.0

Kanagasaki Castle: Nobunaga's Retreat, Hideyoshi's Rise

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 立花左近, CC BY-SA 3.0. Over two centuries later, in 1570, Kanagasaki entered Japanese history again when Oda Nobunaga -- the warlord who would begin the unification of Japan -- launched an attack against the Asakura clan at this very fortress. The campaign went badly. Nobunaga found himself outmaneuver...

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Image: 立花左近 | CC BY-SA 3.0

Kanagasaki Castle: Shrine, Ruins, and Memory

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 立花左近, CC BY-SA 3.0. Today the hilltop is a quiet place. The remnants of stone walls, earthen enclosures, and dry moats are still visible among the trees, and the foundations of the central building and gate can be traced by careful observers. The Japanese government designated the site a National Hi...

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Image: 立花左近 | CC BY-SA 3.0