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Title: Crownwork  
Author: World Heritage Encyclopedia
Language: English
Subject: Fortifications, Lunette (fortification), Chemin de ronde, Outpost (military), Ridge castle
Publisher: World Heritage Encyclopedia


A crownwork outside a bastion.
Feature 'l' is a Crownwork. From the Cyclopaedia.

A crownwork is an element of the trace italienne system of fortification and is effectively an expanded Hornwork. It consists of a full bastion with the walls on either side ending in half bastions from which longer flank walls run back towards the main fortress.[1]

The crownwork was used to extend the fortified area in a particular direction often in order to defend a bridge, prevent the enemy occupying an area of high ground, or simply strengthen the overall fortifications in the expected direction of attack.[2]


  1. ^ Griffiths 1862, p. 262.
  2. ^ Editor 1830, p. 590.


  • Griffiths, Frederick Augustus (1862). The artillerist's manual, and British soldier's compendium (9 ed.). Parker & Son. 
  • Editor (1830). "A Popular View of Fortification and Gunnery, No. I. 49, No. II. 316, No. III. 586". The United Service Journal and Naval and Military Magazine (London: Henry Colburn and Richard Bentley). 
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