Although the Onjo-ji Temple had been deeply trusted by MINAMOTO no Yoritomo, it lost trust from the shogunate because of the assassination of MINAMOTO no Sanetomo by Kugyo, who had been being trained in the Onjo-ji Temple, and had been being leaving.
園城寺はかつて源頼朝から厚い信頼を受けていたが、園城寺で修業していた公暁が源実朝を暗殺した事件を機に幕府からの信頼を失って衰退しつつあったのである。