When Emperor Godaigo started the Kemmu Restoration, in order to solve such problems he made the following policy to stabilize the family estate as well: in transferring the family reign, which had the authority to control the family, the family estate was included as an inevitable factor for keeping the family, although originally the estate wasn't associated with the reign.
後醍醐天皇が建武の新政の開始すると、この問題を解消するために家門管領の権限を持つ家督の移動の際に、本来は関連性のない家領を家門の経営上必要不可欠なものと位置づけて、家領全体の安堵も合わせて行う方針を打ち出した。