After Shirakawa dono (Taira no) Seishi died, Goshirakawa took Private land belonged to the Sekkan Family (family who was a regent to the emperor) and was under Seishi's control, and after Shigemori died, Goshirakawa took Echizen Province which Shigemori was in charge of ruling.
白河殿盛子が死去すると、盛子の管理していた摂関家領を没収、重盛が死去するとその知行国・越前を没収した。