Cloistered Emperor Goshirakawa attempted to convince Shigehira by sending FUJIWARA no Sadanaga, and negotiated with Munemori, the commander of the Taira clan in Yashima in Sanuki Province to exchange the three sacred imperial treasures with Shigehira; but, this was refused.
後白河法皇は藤原定長を遣わして重衡の説得にあたるとともに、讃岐国・屋島に本営をおく平氏の総帥・宗盛に三種の神器と重衡との交換を交渉するが、これは拒絶された。