The Sofuku-ji Temple keeps a floor board called the "Bloody Ceiling" on the ceiling; it is the floor board on where Hidenobu's 38 retainers killed themselves after Gifu-jo Castle was surrendered.
また、崇福寺には岐阜落城時に秀信家臣38人が切腹した場所の床板を天井に張った「血天井」が存在する。