According to the March 18, 1158 part of "Heihanki" (The Diary of TAIRA no Nobunori), 'shinshi' (Daigaku student who passed a subject of the official appointment test) and 'Koto' (the third title of the official ranks within the Todo-za (the traditional guild for the blind)) who greeted the groom at the wedding of a daughter (the wife of FUJIWARA no Naganori ?) were supposedly the brothers-uterine, Nobumoto and TAIRA no Nobusue, thus shinshi is considered to have been Kidendo (the study of the histories).
『兵範記』保元3年2月9日条に信範の娘（藤原脩範室か？）の婚礼の際に婿を迎えた「進士」「勾当」が同母兄弟である信基・平信季兄弟と推定されており、進士＝紀伝道であったと見られている。