Fort de Boutavant, Medieval fortification on Île La Tour, France
The remains of Fort de Boutavant stand on an island in the Seine River, featuring a quadrilateral structure measuring eight meters on each side.
Built around 1198 as a forward defense for Château-Gaillard, the fort fell to French King Philip Augustus during the summer campaign of 1203.
The fort represents medieval military engineering techniques and demonstrates the strategic planning methods used to control water routes in Normandy.
Visitors can observe the remaining wall sections of Fort de Boutavant from the opposite bank of the Seine River throughout the year.
The stones from Fort de Boutavant were reused in 1571 to construct the Chartreuse de Bourbon-lez-Gaillon under the reign of Charles IX.
Location: Les Trois Lacs
GPS coordinates: 49.21500,1.37238
Latest update: June 23, 2025 11:08
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