Although, the Honmaru area was surrounded by stonewalls and was protected by the mud walls, gates, and watchtowers as mentioned earlier, the Honmaru Goten (Honmaru Palace) was more like a Shukukan for the Shogun family.
これまでに挙げたように、本丸周辺は石垣をめぐらし、土壁や門、矢倉で固められていたが、本丸御殿は将軍家宿館としての性格を色濃く示している。