Heian Period: Hōgen Rebellion July 28th - August 16th 1156

Background:

• The Hōgen Rebellion occurred in July–August 1156 in Kyoto, during the Heian period of Japan.

• It was triggered by a dispute over imperial succession and by internal power struggles among aristocratic clans—especially the Fujiwara—and emerging military (samurai) families.

• After the death of retired Emperor Toba, conflict intensified between Emperor Go‑Shirakawa and Retired Emperor Sutoku over who should hold real influence; the Fujiwara were split, with some siding with Go‑Shirakawa and others with Sutoku.

• Both sides recruited samurai backing: the Minamoto and Taira clans were drawn into the dispute

Key Events:

• In the lead‑up, Sutoku’s side included Minamoto no Tameyoshi, Minamoto no Tametomo, and Taira no Tadamasa. The opposing side (Go‑Shirakawa) was supported by Minamoto no Yoshitomo, Taira no Kiyomori, and Fujiwara no Tadamichi, among others.

• The crucial confrontation was the Siege of Shirakawa‑den (Shirakawa Palace). Go‑Shirakawa’s side launched a night attack. Taira no Kiyomori attacked the west gate, defended by Tametomo; Yoshitomo also attacked. After initial repulses, they resorted to setting fires, forcing defenders to flee.

• The palace was burned down, and Sutoku’s forces were decisively defeated.

Aftermath:

• Victory for Go‑Shirakawa’s side. Sutoku was exiled; many of his supporters were killed or purged.

• Minamoto no Tameyoshi and Taira no Tadamasa were executed; Fujiwara no Yorinaga (on Sutoku’s side) died in battle; Sutoku was banished to Sanuki province.

• Go‑Shirakawa continued to wield power via a system of cloistered rule (retired emperors governing behind the scenes), influencing subsequent emperors even after abdication.

• Importantly, the rebellion is seen as a turning point: it marked the decline of aristocratic (especially Fujiwara) dominance and the rise of samurai clans (Minamoto and Taira) as major political forces.

• It set the stage for the Heiji Rebellion (1159–1160) and the further ascendance of samurai rule leading into the Kamakura period.