At that time, Manor Regulation Acts were often enforced as 'a new government' when a new emperor ascended the throne, and the kokuga, who did not admit the shoen, often tried to incorporate the shoen into koryo (an Imperial demesne).
当時、天皇の代替わりの際に「新政」として荘園整理令が出されたり、また、国衙が荘園を認めずに公領へ編入しようとすることが多かった。