Among the court ladies Emperor Sanjo had frequented since he was the Crown Prince, there were Michinaga's daughter, FUJIWARA no Kenshi, and FUJIWARA no Naritoki's daughter, FUJIWARA no Seishi.
三条天皇には東宮（皇太子）時代からの女御に道長の娘の藤原妍子と藤原済時の娘の藤原せい子がいた。