In 1190, he became a Yoriudo hitto when the Office of Waka was founded and wrote 'kanajo' (Japanese preface) relating to the editing of "Shin Kokin Wakashu" (New Collection of Poems from Ancient and Modern Times).
建久元年、和歌所設置に際して寄人筆頭となり、『新古今和歌集』の撰修に関係して仮名序を書いた。