According to the "Kojiki" (The Records of Ancient Matters) and the "Nihonshoki" (Chronicles of Japan), Ioto no miya was an imperial palace established in the capital of ancient Japan (in the early days of the Yamato dynasty).
庵戸宮（廬戸宮）（いおとのみや）は、『古事記』『日本書紀』に伝わる古代日本(ヤマト王権初期)の首都として営まれた皇宮（皇居）。