Then Michinaga and Korechika fiercely struggled against each other to succeed to the seat of Kanpaku; eventually on June 16, a senji to assume the title of document Nairan was issued to Michinaga, and on July 24, Michinaga rose to Udaijin, thrusting aside Korechika, and received a senji to assume the titles of Uji no choja (chieftain of family) and Tenka shikko (to administer the country).
そこで、後継の関白を巡り、激しい闘争が道長と伊周の間に繰り広げられた挙句、5月11日、道長に文書内覧の宣旨が下り、翌月19日、彼は伊周を押し退けて右大臣に昇任、氏の長者並びに天下執行の宣旨を獲得した。