Shishigatani incident

The conspiracy was discovered, and its perpetrators arrested and punished before any part of their plan was put into action.

The name comes from the location where the conspirators met, a mountain villa belonging to Jōken Hōin, in the Shishi Valley (Shishigatani) in the Higashiyama area of Kyoto.

He rose quickly to power in the 1160s and dominated rather than guided the Imperial Court, taking advantage of his position to install members of his own family into high court positions, and marrying them into the Imperial family.

Saikō, a monk, was tortured and then executed, angering monastic groups already opposed to his considerable secular authority.

The events, and their consequences, are related in the classical epic Heike monogatari, and in a number of derivative works such as the Noh play Shunkan and the jōruri (puppet theater) production Heike Nyogo-ga-Shima which concern themselves with the exiles on Kikai-ga-shima.