Prince Sadafusa who succeeded to his older brother, Prince Haruhito, was under the suspicion of killing his brother with poison, but he was released since the Retired Emperor Gokomatsu and the fourth Shogun Yoshimochi ASHIKAGA did a favor and made an alibi for Prince Sadafusa.
このため治仁王の跡を継いだ貞成王に兄を毒殺した嫌疑がかけられたが、後小松上皇や4代将軍足利義持への弁明が功を奏して安堵を受けている。