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The Château de Brest is a castle in Brest, Finistère, France. The oldest monument in the town, it is located at the mouth of the river Penfeld at the heart of the roadstead of Brest, one of the largest roadsteads in the world. From the Roman castellum to Vauban's citadel, the site has over 1700 years of history, holding right up to the present day its original role as a military fortress and a strategic location of the highest importance. It is thus the oldest castle in the world still in use, and was classified as a monument historique on 21 March 1923 (). The structure's heterogeneous architecture has been the result of continual adaptations to developments in siege warfare and armament on land and sea. The château stands on the opposite bank to the Tour Tanguy combining to defend the entrance to the Penfeld. ==An ideal geographic location== The Roadstead of Brest, well-protected by a narrow "goulet" but sufficiently large to allow ships to turn or move, forms a natural harbour. Its dimensions make it a small inland sea, capable of receiving the largest fleets. It is so vast that it offers a protected haven for ships. This haven is fed by the river Penfeld from the north, running off the plateaus of Léon. Its lower course is winding, with high raised banks that break strong winds. Even heavy-tonnage vessels can berth safely in this vast and substantial area. The cape that divides the roadstead from the bay has four sides, three of which are defended by nature and with a fourth side that needs fortification but which is still easily defensible. This unique site gives the castle major strategic significance The castle was thus built on a rocky outcrop carved out which the river has cut into the cliff at its mouth in the estuary. Since the place overlooks and dominates the sea, it controls access to the Penfeld and the lower reaches of the Elorn towards Landerneau, all whilst overlooking a major part of the roadstead and its entrance : the Goulet de Brest. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Château de Brest」の詳細全文を読む スポンサード リンク
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