The ingu bunkoku-sei system is the system in which Innomiya families (the families of Daijo Tenno (the Retired Emperor), nyoin (a close female relative of the Emperor or a woman of comparable standing), Empress, chugu (the second consort of an emperor) and Togu (the Crown Prince)) were given the right to make a recommendation of kokushu (or zuryo (the head of the provincial governors)) of a specific province and were also allowed to get the kanmotsu dedicated by the province.
院宮分国制とは、年限を限って、院宮家（太上天皇・女院・皇后・中宮・東宮など）に特定国の国守（または受領）を推薦する権利を与えるとともに、当該国から上進される官物を院宮家が収納するという制度である。