When FUJIWARA no Motohira was building a large temple at Motsu-ji Temple, he asked Tadamichi for a sample of his calligraphy to frame and hang at Kondo Enryaku-ji Temple (which later burned down).
藤原基衡が毛越寺に伽藍を建立した際、金堂円隆寺（のちに兵火で焼失）に掲げる額の揮毫を忠通に依頼した。