What was a wengcheng and how did it protect a Great Wall gate?

A wengcheng was a semicircular or polygonal parapet built outside a gate of the Great Wall of China. Its primary purpose was to shield the gate from direct assault, as this was the area where an enemy was most likely to attack.1

By creating this additional defensive enclosure, the wengcheng provided a critical layer of protection for the gate, which served as a vital access point for trade and a strategic exit for garrison troops to launch counterattacks or patrols. In particularly strategic locations, these structures were further reinforced by a luocheng, an additional line of protection extending beyond the wengcheng that featured a tower for monitoring enemy movements and directing battles.1