Keywords
Architecture
Castles
Also called taikobei 太鼓塀 or drum wall. A double castle wall that consisted of two separate walls between which earth, sand, and stones were placed. It came into wide use after the introduction of firearms to stop bullets. One example is Ashikaga Yoshiaki's 足利義昭 (1537-97) Nijō Gosho 二条御所, where the double wall was filled with stones.