Breastwork
Return to features index
A breastwork is a low defensive wall or barricade that stands roughly at chest or breast height, designed to protect defenders while allowing them to fire over the top. In the context of castle and military architecture, the term is used to describe either a hastily erected field fortification constructed during a battle, or more commonly, a permanent stone parapet crowning the castle's outer curtain walls. The term comes from the historical English roots "breast" and "work," denoting any structure meant to guard the chest area. Understanding the breastwork in a castle context involves looking at its construction, its purpose, and its relation to other castle. When designed as part of permanent medieval fortifications, the breastwork often included several distinct design features intended to maximize defense.
Features:
Permanent Stone Breastwork (Parapet): When referring to permanent castle architecture, a breastwork is synonymous with a parapet. This is the low wall that runs along the top of a walkway or rampart, serving as a protective shield for defenders.
Temporary or Earthwork Breastworks: In a broader military sense, a breastwork can be a quickly constructed barrier (often made of earth, logs, sandbags, or stones) thrown up hastily by defenders inside or outside the castle when under sudden siege.
Embrasures and Merlons: To allow defenders to shoot arrows, crossbows, or firearms without exposing themselves, the top of a breastwork/parapet was often divided into alternating solid sections (merlons) and gaps or cut-outs (embrasures).
Firing Steps: Defenders would often stand on a ledge or raised platform (the terreplein) behind the breastwork to see and shoot over it.
Shelter and Concealment: Aside from tactical defense, the breastwork shielded defenders from wind, weather, and enemy surveillance.
Breastwork vs. Other Castle Defenses:
Battlement: A battlement refers to the entire upper section of a wall, which includes the breastwork (parapet) and its protective gaps and merlons.
Rampart: A rampart is the broad, heavy embankment of earth or stone that supports the walkway, whereas the breastwork is the specific, chest-high wall on the very outer edge of that walkway.
Machicolation: Unlike a standard, solid breastwork, a machicolation is a floor structure that projects out from the top of the wall on supports, featuring open gaps in the floor so defenders could drop rocks, boiling oil, or arrows directly down at attackers.
Features:
Permanent Stone Breastwork (Parapet): When referring to permanent castle architecture, a breastwork is synonymous with a parapet. This is the low wall that runs along the top of a walkway or rampart, serving as a protective shield for defenders.
Temporary or Earthwork Breastworks: In a broader military sense, a breastwork can be a quickly constructed barrier (often made of earth, logs, sandbags, or stones) thrown up hastily by defenders inside or outside the castle when under sudden siege.
Embrasures and Merlons: To allow defenders to shoot arrows, crossbows, or firearms without exposing themselves, the top of a breastwork/parapet was often divided into alternating solid sections (merlons) and gaps or cut-outs (embrasures).
Firing Steps: Defenders would often stand on a ledge or raised platform (the terreplein) behind the breastwork to see and shoot over it.
Shelter and Concealment: Aside from tactical defense, the breastwork shielded defenders from wind, weather, and enemy surveillance.
Breastwork vs. Other Castle Defenses:
Battlement: A battlement refers to the entire upper section of a wall, which includes the breastwork (parapet) and its protective gaps and merlons.
Rampart: A rampart is the broad, heavy embankment of earth or stone that supports the walkway, whereas the breastwork is the specific, chest-high wall on the very outer edge of that walkway.
Machicolation: Unlike a standard, solid breastwork, a machicolation is a floor structure that projects out from the top of the wall on supports, featuring open gaps in the floor so defenders could drop rocks, boiling oil, or arrows directly down at attackers.