town, capital of Deux-Sevres departement, Poitou-Charentes region, western France. The town lies on the slopes of two hills facing one another on the left bank of the Sevre Niortaise River, above its silted estuary. It grew up in the shelter of a 12th-13th-century castle erected by Henry II of England and his son Richard I the Lion-Heart. The two square towers of the castle keep dominate the river. Niort became one of the centres of Protestantism in western France and suffered severely after the revocation of the Edict of Nantes in 1685. The 15th-16th-century Church of Notre-Dame stands south of the castle, and the 16th-century former town hall is on the opposite hill.
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