In his grandchild's time, Tadayori became Kaga no kuni no suke (officer in charge of regional administration in Kaga) and the ancestor of the Kaga-Saito clan which was the origin of the Hori clan; the Hirooka-Saito clan which was the origin of the Togashi and the Hayashi clan; and the Makino clan.
その孫の代では忠頼が加賀国介となり、加賀斎藤氏、弘岡斎藤氏、牧野氏の祖となり、加賀斎藤氏から堀氏、弘岡斎藤氏から富樫氏、林氏が出る。