Kanpaku FUJIWARA no Morozane was the father of "Gonijo Moromichi Ki" author FUJIWARA no Moromichi, who attended jin-no-sadame (government councils during Heian period) as Nai-daijin and, as the Kugyo nobles usually did, probably wrote the entry dated June 12, 1091 the following morning and, as such, it can be considered accurate.
関白藤原師実は『後二条師通記』の藤原師通の父であり、藤原師通はその陣定に内大臣として出席しており、当時の公卿の日記の書き方から『後二条師通記』寛治5年6月12日条はその翌朝に書かれたものと推察できほぼリアルタイムとみなしてよい。