In 1577, he was promoted even higher to Sadaijin (Minister of the Left), and in 1581, he finally assumed the position of Kanpaku of Emperor Ogimachi, which was Toshi choja (head of the Fujiwara clan).
同5年（1577年）には左大臣と昇進を重ね、天正9年（1581年）には正親町天皇の関白、藤氏長者となった。