Shizugatake: How Politics after Nobunaga Became a War between Hideyoshi and Katsuie

Shizugatake is often associated with the Seven Spears. Following the road to battle, however, reveals a dispute over the political inheritance of Nobunaga and the control of castles in several regions.

Hideyoshi and Katsuie had once served the same lord. Their later confrontation in the hills of northern Omi cannot be explained simply by placing two rival personalities opposite one another on a battlefield.

This account follows leadership after Nobunaga, changes in strongpoints and the movements of separate forces. The celebrated warriors remain part of the story, while the campaign that made their actions possible comes into view.

Fukui Prefectural History describes Hideyoshi taking the initiative at Kiyosu and later conducting Nobunaga’s funeral. Katsuie, meanwhile, criticized what he regarded as Hideyoshi’s unilateral action.

Nobunaga’s son Nobutaka and Takigawa Kazumasu also became connected to opposition against Hideyoshi. The conflict involved political positions and relationships extending beyond the preferences of two commanders.

Who could act in the name of the emerging order, which partners could support that action, and which castles could sustain it were connected questions. This is an interpretation of the observable political pattern, rather than a claim to know the private emotions of the people involved.

Katsuie’s position in Hokuriku brought seasonal constraints into the conflict. Fukui Prefectural History explains his concern that snowfall would make the reinforcement of troops and the supply of weapons and ammunition difficult.

He sent envoys seeking peace, while Hideyoshi’s actions around Nagahama continued. Negotiation and military movement developed alongside the practical problem of getting people and material through the landscape.

A commander could not move an army at the same speed in every season merely by deciding to do so. Territory, roads and transport conditions narrowed the available choices. No exact journey time, weather reconstruction or universal marching speed is inferred here.

In the middle of the second month of 1583, Hideyoshi began attacking Kazumasu’s positions around Nagashima and Kuwana in Ise. When Katsuie’s forces advanced from Hokuriku, Hideyoshi entrusted that fighting to Nobunaga’s son Nobukatsu and returned to Omi in the third month.

Katsuie established his headquarters at Yanagase, while Hideyoshi’s side occupied positions around Lake Yogo. Tsuruga City identifies Genbao Castle as Katsuie’s headquarters. The campaign involved connected positions including Oiwayama and Shizugatake, rather than two armies arranged in one open field.

Nagahama’s historical-cultural plan treats the surrounding positions as a group of campaign fortifications. Cultural Heritage Online separately records the designation of Genbao’s remains as a historic site on 13 July 1999. That modern designation is not a date of battle or construction.

One target was Oiwayama, defended by Nakagawa Kiyohide. The prefectural history states that Katsuie approved Morimasa’s plan on the condition that his force return immediately after taking the position.

On the twentieth day of the fourth month of Tensho 11, Morimasa and his companions attacked Oiwayama, and Kiyohide was killed. This date is retained in the Japanese calendar then in use; it has not been converted to Gregorian April.

The attack succeeded, but Morimasa remained at Oiwayama. Capturing the position and deciding what to do afterwards were separate stages. The first success did not settle the outcome of the campaign. No invented last words or exact death scene is added to the account.

During the pursuit, Maeda Toshiie and others on Katsuie’s side left the battlefield, and the army’s cohesion broke down. The prefectural history traces Katsuie’s inability to mount a decisive engagement and his retreat toward Kitanosho.

Units within one camp did not necessarily continue acting together until the end. Distinguishing departing troops from those remaining helps explain how an army could lose the capacity to fight as a coherent force.

Katsuie later met his end at Kitanosho Castle. The result at Shizugatake substantially changed relations among Nobunaga’s former retainers. The account does not explain each departure through an invented inner motive, nor reconstruct unverified dialogue at the castle.

The struggle for leadership after Nobunaga changed castle control and political relationships, then developed into military confrontation. Season and supply, an uprising elsewhere, an attack on a position and a rapid change in direction became interconnected.

Reducing Shizugatake to one commander’s personality or the exploits of seven men would leave much of that process unexplained. Following the relationships among places and forces gives the campaign a more coherent shape.

The remaining sites and the written historical accounts provide different starting points for inquiry. Reading them together, while retaining the limits of each, connects the celebrated battle with the politics of the Oda house and the geography of northern Omi.