Originating from the Imperial family, Tadayuki went to the Owari Domain and lived in the Nagoya-jo Castle; after returning to Kyoto, he became a court noble and was promoted to Dainagon (Chief Councilor of State).
皇族に生まれた忠幸は最初、尾張藩に赴き名古屋城で暮らしていたが、のち帰洛して公家となり大納言にまで進んだ。