It proved that, as mentioned in historical materials, the Honno-ji Temple was remodeled as the accommodation for Nobunaga in February and March 1580 by constructing moats and mud walls and newly building a stable and reconstructing the main building.
本能寺が史料の通り、天正8年（1580年）年2月に、堀土居を造り厩新設し本堂などの改築で信長宿舎として改造されたことを裏付けている。