What Is Castle Crenellation?

A battlement in defensive architecture, such as that of city walls or castles, comprises a parapet, in which gaps or indentations, which are often rectangular, occur at intervals to allow for the launch of arrows or other projectiles from within the defences.

What is a crenellation in a castle?

Crenellation is a feature of defensive architecture, most typically found on the battlements of medieval castles. A battlement is a low, defensive parapet. The act of crenellation is the cutting of crenels into a previously solid and straight parapet wall.

What was the purpose of a crenellation?

Crenellations are one of the most recognizable elements of a medieval castle. These upright projections resemble teeth, bared at invaders to prevent their attempted entries and at allies to show the owner's strength. Each upright section is called a merlon or crenel, and they protected defenders from attacks.