After the height of Insei from the Retired Emperor Shirakawa to the Retired Emperor Gotoba, In no cho continued to function as an important political institution of the Imperial Court (central government) until Insei lost substance in the early Muromachi period.
院庁は、白河院～後鳥羽院の院政最盛期を経て、室町時代前期に院政が実質を持たなくなるまで、朝廷（中央政府）の重要な政務機関として機能し続けた。