Eventually, the citizens of Japan recognized the fact, that Tokyo was the de facto capital; then gradually "Tokyo-jo Castle" became to be referred to as the "Kyujo" (place where the Emperor lives), and finally as the "Kokyo" (Imperial Palace).
事実上東京が首都と見なされるようになり、東京城はやがて「宮城」「皇居」と呼ばれるようになったのである。