At that time, Motohiro told Tsunayoshi and Ienobu that Emperor Higashiyama sought to assign Imperial Prince Yasuhito (later became Emperor Nakamikado) as his heir.
その際、基熙は東山天皇が慶仁親王（後の中御門天皇）を後継に立てる意向である事を綱吉・家宣に伝えている。