The Château de Beaumont-sur-Oise is a ruined medieval castle in the commune of Beaumont-sur-Oise in the Val-d'Oise département of France.
This ancient castle is one of the most important in the valley of the Oise. It has a rectangular Romanesque keep with buttresses 25m high and 5m wide. It was probably built by the count Mathieu to replace a preceding timber structure of the castrum type which had existed from the 3rd century on this rocky outcrop. It was destroyed and rebuilt several times between the 10th and 17th centuries and was no more than a ruin by the 19th.
Source: Wikipedia.org
Copyright: Creative Commons 3.0
Address: Ile-de-France, France
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