The place where Yoshitaka KURODA was confined was located in the northwestern part of Arioka-jo Castle backed with deep marsh and surrounded by bamboo thickets on the other three sides and no sunshine reached the place and it was very humid.
黒田孝高が閉じ込められていた場所は、有岡城の西北にあり、後は深い沼地、三方に竹藪に囲まれていて日も差し込みにくく湿気が多い場所であった。