However, in reality, Tadazane was 22 in 1099 when his father Moromichi died suddenly and he became Sessho (Regent) at a tender age (younger than his great grandfather, who had taken on the role at 26 years), and as he had not even served as a Minister, he did not become Kampaku (Chancellor) and was confined to private audiences, and his grandfather FUJIWARA no Morozane, who was already retired, had no remaining influence to support Tadazane, leading to a decline in the power of the Sekkan-ke (family eligible to be Regents).
だが現実の忠実は康和元年（1099年）22歳で父・師通が急死、最年少で摂政となった曽祖父藤原頼通の26歳を下回り大臣も経ていないため、関白になれず内覧にとどまった事と、既に引退していた祖父藤原師実には、忠実を支える余力が無かった事が摂関家勢力を落とす要因になった。