Kinsue's legitimate grandchild FUJIWARA no Kinnari, who was particularly favored by Kinsue in his last years, was promoted only up to Chu-nagon (Middle Counselor) while Kinsue was alive, but after his death, Kinnari's daughter FUJIWARA no Moshi (adopted daughter of FUJIWARA no Yoshinobu) gave birth to a prince who later became Emperor Shirakawa; this event brought luck to the clan, resulting in unexpected completion of the plan that Kinnari's grandfather, Kinsue, could not complete.
晩年の彼が特別に目をかけた嫡孫藤原公成は、生前の官位こそ中納言どまりであったが、死後、娘藤原茂子（藤原能信養女）が生んだ皇子が白河天皇となったことで一族の運を開き、祖父が成し遂げなかった事業を意外にも完成した。