In 1272, Nishihachijo zenni, the widow of the Third Shogun MINAMOTO no Sanetomo, wrote in a letter addressed to Shoshin-in Temple, the family temple of Sanetomo, that it should count on Yasumori, the grandson of Kagemori ADACHI, who had been faithful to Sanetomo, for any problem concerning the temple.
3代将軍源実朝の未亡人西八条禅尼は、文永9年（1272年）に実朝の菩提寺照心院に宛てた置文に、寺の諸問題が起きた時には、実朝に志し深かった安達景盛の孫である泰盛を頼るように記している。