Without a doubt, emperors after Emperor Reizei were less fortunate to have imperial princesses, so there was a time when a princess could not be a possible candidate for Saiin, but there was no doubt that her strong blood relations with successive regents kept her life stable even though she lost her parents at a young age.
確かに冷泉天皇以降歴代の天皇は内親王に恵まれること少なく、斎院の候補者となるべき皇女が存在しなかった時期もあったが、歴代摂関と濃い血縁関係にあったことが幼くして両親に死別した内親王の生涯の安定を支えたことは疑いない。