In the missive detailing Sanesuke's punishment drafted on January 12, 1020, the following statement was included, in an attempt to make FUJIWARA no Chiko, Ryoen's paternal younger half-sister, his heir: 'Children who are priests and laymen shall in no case be able to take his place,' and this 'priests and laymen' is thought to refer to Ryoen (the priest) and Sanesuke's adopted heir, FUJIWARA no Sukehira (the layman).
寛仁3年12月9日(旧暦)（1020年1月6日）作成された実資の処分状にて良円の異母妹藤原千古に財産を継承させるために「道俗子等一切不可口入」を宣言しているが、この「道俗」とは良円（＝道）と養嗣子藤原資平（＝俗）のことと考えられている。