Even after Hidetada transferred political power to his son, he continued to have the real power where he had the bakufu put under a dual policy by mutual consent between assistants in the keep of the castle and the secondary enclosure of the castle.
秀忠は政権移譲した後も、大御所として軍事指揮権等の政治的実権は掌握し続け、幕政は本丸年寄と西の丸年寄の合議による二元政治のもとに置かれた。