On this occasion, FUJIWARA no Kunitsuna, Keishi of Sekkan-ke schemed to have Seishi take over a large volume of land for private use of the family --excluding denka no watari-ryo (the land to which the Fujiwara family succeeded by inheritance), Kangaku-in-ryo (the land for educational institutions), Midoryu-jiin-ryo (the land of Buddhist temples which belong to the family of FUJIWARA no Michinaga)--as well as diary treasures and Higashi Sanjo-dono Palace inherited from generation to generation..
この時、摂関家家司の藤原邦綱は殿下渡領・勧学院領・御堂流寺院領を除く膨大な私的家領・代々の日記宝物・東三条殿を盛子が伝領するよう策動した。