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Origin and history

Blainville-Crevon Castle is a former medieval castle, now in ruins, located in the municipality of Blainville-Crevon, Seine-Maritime (Normandie). Mentioned in 1172 with Geoffroy de Mauquenchy, it is attributed to Jean IV de Mauquenchy, Marshal of Blainville and companion of Bertrand du Guesclin, who built it on an older site in the 14th century. The fief became a fortress before passing to the families of Estouteville, Alègre, and Colbert-Seignelay.

In the 15th century Colart d'Estouteville, captain of Arques and Cherbourg, repaired the castle after a fire. Confiscated by the English during the Hundred Years' War, it was taken over in 1435 by Jean d'Estouteville, who restored it and founded the collegiate Saint-Michel. In the 17th century, the castle was partially razed to give way to an unfinished 18th century building, before being completely destroyed in 1797 during the Revolution.

The ruins, listed as historical monuments in 1977, now house the Festival Archéo Jazz. The site illustrates the architectural transformations and political conflicts that marked Normandy from the Middle Ages to the Revolution. The remains recall his strategic role during the Hundred Years' War and the Wars of Religion, as well as his connection with figures such as Henry IV, who would have held a council of war there before the capture of Rouen.

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