Heiji rebellion

Heiji rebellion
Part of MinamotoTaira clan disputes of the Heian period

Emperor Nijō escaping from the imperial palace
Date January 19 – February 5, 1160
Location
Kyōto, Japan and surrounding areas
Result Taira victory; Minamoto leaders banished
Belligerents
Taira clan, forces loyal to Emperor Nijō, forces loyal to Emperor Go-Shirakawa Minamoto clan
Commanders and leaders
Taira no Kiyomori
Taira no Shigemori
Fujiwara no Michinori
Minamoto no Yoshitomo
Minamoto no Yoshihira
Minamoto no Yoritomo
Fujiwara no Nobuyori
Strength
few thousand few thousand
Casualties and losses
unknown unknown

The Heiji rebellion (平治の乱, Heiji no ran, January 19 – February 5, 1160) was a short civil war between rival subjects of the cloistered Emperor Go-Shirakawa of Japan in 1160 fought in order to resolve a dispute about political power. It was preceded by the Hōgen Rebellion in 1156. Heiji no ran is seen as a direct outcome of the earlier armed dispute; but unlike Hōgen no ran, which was a dispute between members of the same clan, this was rather a struggle for power between two rival clans. It is also seen as a precursor of a broader civil war.

Context

Emperor Go-Shirakawa stepped back from his formal role as emperor, but his abdication implied no cession of political or other powers to his successor.

  • September 5, 1158 (Hōgen 3, 11th day of the 8th month): In the 3rd year of Go-Shirakawa-tennō's reign (後白河天皇25年), the emperor abdicated; and the succession (senso) was received by his eldest son. Shortly thereafter, Emperor Nijō is said to have acceded to the throne (sokui).

After Nijō was formally enthroned, the management of all affairs continued to rest entirely in the hands of Go-Shirakawa.

In late 1159, Taira no Kiyomori, head of the Taira clan and supporter of Emperor Nijō, left Kyōto with his family, on a personal pilgrimage. This left his enemies, Fujiwara no Nobuyori and the Minamoto clan, a perfect opportunity to effect an uprising.

  • January 19 – February 5, 1160 (Heiji 1, 9th–26th day of the 12th month): The Heiji rebellion, also known as the Heiji disturbance or the Heiji insurrection or the Heiji war.

Combat

Night Attack on the Sanjō Palace (handscroll detail)
Battle at Rokuhara

In the Siege of Sanjō Palace, Nobuyori and his Minamoto allies abducted the former emperor Emperor Go-Shirakawa and Emperor Nijō and set fire to the Palace.

Minamoto no Yoshitomo and Fujiwara no Nobuyori placed Go-Shirakawa and Emperor Nijo under house arrest and killed his retainer, the scholar Fujiwara no Michinori. Nobuyori had himself declared imperial chancellor, and began to see his plans for political power fall into place.

However, the Minamoto did not plan well enough militarily, and were unprepared to defend the city against Kiyomori's return. Upon his return, the Minamoto made no decisive moves and hesitated.

Kiyomori, who returned to Kyōto, made some peace proposals to Nobuyori. However, this was a plot. While Nobuyori was careless, the Emperor Nijō and the former emperor Go-shirakawa escaped to Kiyomori's side.

Kiyomori received an imperial grant from the Emperor for attacking Yoshitomo and Nobuyori. Taira no Shigemori (the eldest son of Kiyomori) led 3,000 cavalry and attacked the Imperial Palace where Yoshitomo and Nobuyori were holed up. Nobuyori ran away immediately, but Minamoto no Yoshihira (the eldest son of Yoshitomo) fought back and a fierce battle ensued. Yoshihira fought hard and chased Shigemori within the Imperial Palace.

The Taira force retreated and the Minamoto force left the Imperial Palace in pursuit. This was a plot of Kiyomori. A detached Taira force occupied the Imperial Palace. The Minamoto force was cut off from the way of retreat. The Minamoto force charged at Rokuhara of a base of Kiyomori. It became a fierce battle, but finally the Minamoto force fled in disorderly retreat.

Outcome

Ultimately, Taira no Kiyomori defeated Yoshitomo. Yoshitomo was eventually betrayed and killed by a retainer while escaping from Kyōto in Owari. Yoshitomo's two sons, Minamoto no Tomonaga and Minamoto no Yoshihira were also casualties. However three of his other sons, Yoritomo (then only 13 years old, and future founding Shogun of the Kamakura Shogunate 25 years later), Noriyori and Yoshitsune were spared.

Afterwards, Taira no Kiyomori banished Yoshitomo's son Minamoto no Yoritomo, seized Minamoto wealth and land, and eventually formed the first of four samurai-dominated governments during the feudal history of Japan.

Legacy

The rivalry between the Minamoto and Taira clans was exacerbated by the Heiji rebellion. This led to the Genpei War, ending with the decisive Taira defeat at the Battle of Dan-no-ura in 1185.

The Kamakura period epic Tale of Heiji is about the exploits of the samurai who participated in the Heiji Rebellion. Together with the Tale of Hōgen and the Tale of Heike, these war stories (gunki monogatari) describe the rise and fall of the Minamoto and Taira samurai clans.

Illustrations

The scroll below, Illustrated Tale of the Heiji Civil War: Scroll of the Imperial Visit to Rokuhara, housed at the Tokyo National Museum, illustrates some events of the Heiji Rebellion.

Illustrated Tale of the Heiji Civil War: Scroll of the Imperial Visit to Rokuhara