File:Plan.fortifications.Augsbourg.png

...Le plan général des fortifications de cette ville, au commencement du XVI^e siècle, que nous donnons ici (11), fait voir comme on entendait, à cette époque, disposer les boulevards en avant des angles saillants des vieilles défenses, et comme on cherchait dès lors à rendre ces boulevards plus forts par des redents flanquant leurs faces....

This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).

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