In 1177 the Shishigatani Conspiracy was launched, as a result of which several of the group of close retainers to the cloistered emperor, including FUJIWARA no Narichika, TAIRA no Yasuyori, and the monks Saiko and Shunkan were executed, and suspicions about cloistered emperor Goshirakawa's possible involvement in the plot were raised as well.
治承元年（1177年）には鹿ヶ谷の陰謀が起き、藤原成親、平康頼、西光、俊寛ら院近臣多数が処罰され、後白河法皇も事件への関与を疑われた。