Although the donation was already made by Yoshitomo in April 1145, Tsunetane offered money for festivals to the feudal lord Masatomi of the Ise priest family, a Shinto priest of the Ise-naiku (inner shrine), in accordance with 'a deed of father Tsuneshige,' and offered the Ise-jingu Shrine a deed stating that kajishi and the position of a local official to manage a shoen estate would be inherited by his children and descendants.
すでに天養2年（1145年）3月、義朝による寄進があったが、常胤は「親父常重契状」の通り、領主・荒木田神主正富（伊勢内宮神官）に供祭料を納め、加地子・下司職を常胤の子孫に相伝されることの新券を伊勢神宮へ奉じた。