It came as a great shock to Shigemori that his brother in law, Narichika, was the leader of the plot to topple the Taira clan, and it seems that Yorimori also was subjected to close scrutiny due to the fact that Shunkan, Hossho-ji Temple executive, who was a brother of his wife, Dainagon no tsubone, was a party to the plot.
重盛にとって義兄の成親が平氏打倒の首謀者だったことは衝撃だったが、頼盛も謀議に加わっていた法勝寺執行・俊寛が妻・大納言局の兄弟だったことから、厳しい視線にさらされたものと見られる。