However, the regent-and-advisor political administration finally collapsed for a number of reasons: Kenshi being married off to the Emperor meant strengthening the power of the Murakami-Genji (a branch of the Minamoto clan); Morozane's son, FUJIWARA no Moromichi, and Morozane himself died one after the other which led to fights over the family succession; and Morozane's official grandson, Emperor Horikawa, died young.
しかし、賢子入内は村上源氏の勢力伸張をも意味し、また息子の藤原師通と彼のあいついでの薨去とその後継争い、さらに形式上の孫である堀河天皇の早世により崩壊する事となってしまった。