Similar Structures
In German-speaking countries in the Holy Roman Empire, many castles had double curtain walls with a narrow ward between them, referred to as a Zwinger. These were added at vulnerable points like the gate, but were rarely as fully developed as in the concentric castles in Wales or the Crusader castles.
The principle of an outer and inner wall was also used in fortified cities, such as the Theodosian Walls of Constantinople and the city wall of Carcassonne.
The concept of mutually reinforcing lines of defence with flanking fire was continued in later periods, such as the early modern fortifications of Vauban, where outer defence works were protected and overlooked by others and their capture did not destroy the integrity of the inner citadel.
Read more about this topic: Concentric Castle
Famous quotes containing the words similar and/or structures:
“Our ancestors were savages. The story of Romulus and Remus being suckled by a wolf is not a meaningless fable. The founders of every state which has risen to eminence have drawn their nourishment and vigor from a similar wild source. It was because the children of the Empire were not suckled by the wolf that they were conquered and displaced by the children of the northern forests who were.”
—Henry David Thoreau (1817–1862)
“The philosopher believes that the value of his philosophy lies in its totality, in its structure: posterity discovers it in the stones with which he built and with which other structures are subsequently built that are frequently better—and so, in the fact that that structure can be demolished and yet still possess value as material.”
—Friedrich Nietzsche (1844–1900)