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The surrounding wall, made of stone blocks, was about 1200 m long. A covered-way protected by crenels went round. The system was equipped with towers which some names are known: the “Bize” tower, the “Fabre” tower, the “Barral” tower. Three doors gave access to the town. To the south, the “Grand Portail” (big gate) or “Grande Porte”, also called “Portail du Ravelin” with a fore part where
homeless people could shelter. Its access was protected by a drawbridge thrown aside a ditch fed by the...