On June 22, a decision was made to attack Onjo-ji Temple, where Mochihitoo was being harbored, and Yorimori was chosen as one of the generals to command the army that was to carry out the attack. (see the entry for the same day in the "Gyokuyo").
21日、以仁王を匿った園城寺を攻めることが決定され、頼盛は攻撃軍の大将の一人に選ばれている（『玉葉』同日条）。