Qualla: Battle of Kiyosu Castle

Battle of Kiyosu Castle: Introduction

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Alexrk2, CC BY-SA 3.0. He was seventeen years old, freshly orphaned, and his own relatives were carving up his inheritance. In the spring of 1552, Oda Nobunaga -- the young lord who would one day come closer to unifying Japan than anyone before him -- faced a province fractured by rival cousins and hostile neighbors. His first target was Kiyosu Castle, seat of his cousin Oda Nobutomo, the deputy governor of southern Owari. What followed was not a single clash but a grinding two-year campaign of field battles, political maneuvering, and a midnight betrayal that ended with Nobutomo kneeling on the castle floor, blade in hand, forced to take his own life. The Battle of Kiyosu Castle gave Nobunaga his first real domain and the momentum that would carry him across the map of feudal Japan.

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Image: Alexrk2 | CC BY-SA 3.0

Battle of Kiyosu Castle: A Province Torn Apart

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit de:Benutzer:Oliver Mayer, CC BY-SA 3.0. When Nobunaga's father, Oda Nobuhide, died in the spring of 1551, the power structure of Owari Province crumbled overnight. The province was nominally governed by the Shiba clan, but real authority lay with branch families of the Oda, each controlling a slice of territory from th...

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Image: de:Benutzer:Oliver Mayer | CC BY-SA 3.0

Battle of Kiyosu Castle: Spears Longer Than Any Before

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit de:Benutzer:Oliver Mayer, CC BY-SA 3.0. The first blow came in August 1552. Nobutomo had seized two of Nobunaga's border forts, but Nobunaga and his uncle Oda Nobumitsu counterattacked, recapturing the positions and routing Nobutomo's forces at the village of Kaizu, just three kilometers from Kiyosu's walls. More than ...

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Image: de:Benutzer:Oliver Mayer | CC BY-SA 3.0

Battle of Kiyosu Castle: The Gates Open at Midnight

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit de:Benutzer:Oliver Mayer, CC BY-SA 3.0. Despite two battlefield victories, Nobunaga could not breach Kiyosu Castle by force. He settled into a blockade, waiting for the right moment. It came after he defeated the Imagawa clan at the Battle of Muraki in January 1554, freeing himself from the threat on his eastern flank ...

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Image: de:Benutzer:Oliver Mayer | CC BY-SA 3.0

Battle of Kiyosu Castle: The Seat of a Unifier

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit de:Benutzer:Oliver Mayer, CC BY-SA 3.0. With Kiyosu in his hands, Nobunaga became lord of southern Owari and moved his base from Nagoya Castle to his conquered prize. He rewarded his uncle Nobumitsu with Nagoya Castle and two of lower Owari's four eastern districts. Kiyosu would serve as Nobunaga's seat for years to co...

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Image: de:Benutzer:Oliver Mayer | CC BY-SA 3.0