In 1615, Akizane was reappointed kanpaku to Emperor Gomizunoo and head of the Fujiwara clan (it is very rare for a court officer to be reappointed to these positions after an interval of 30 years) and also participated in the establishment of Kinchu narabini kuge shohatto (a set of regulations that applied to the emperor and the Kyoto nobles), signing the official document along with the former Shogun Ieyasu TOKUGAWA and the current Shogun Hidetada TOKUGAWA.
元和元年（1615年）には後水尾天皇の関白、氏長者に再任され（30年ぶりの再任は極めて異例）、禁中並公家諸法度の制定にも関与して、前将軍徳川家康および現将軍徳川秀忠とともに連署している。