Though some (Comprehensive Dictionary of the Japanese Language, Heibonsha Japanese Historic Place Names) say that 2 and 3 were the same building, historical sources such as the Nobunaga Koki, excavations results and surviving place names support the currently prevailing view that they were separate.
2と3は同じものと見る説（広辞苑、平凡社日本歴史地名大系など）もあるが、『信長公記』その他の史料、及び発掘結果、残存地名などを根拠として別のものとするのが現在では通説となっている。