In 1143, Yoshikuni donated his shiryo (private land) developed in Yanada County to Ise Jingu Shrine so that it was certified as Yanada mikuriya (manors of Imperial family and powerful shrines).
康治2年（1143年）、梁田郡内の開発私領を伊勢神宮に寄進し梁田御厨を立券。