The manors, acquired tax exemption privilege, started enlarging their territories through the unification of their territorial control and encroaching on the kokugaryo territories controlled by kokuga.
免税特権を獲得した荘園は領域が統合される一円化の措置などを通じて拡大する傾向を示し、国衙が支配する国衙領を蚕食し始めた。