Château de Beaumont-sur-Oise, Beaumont-sur-Oise, France

The Château de Beaumont-sur-Oise is an ancient castle, 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 (1090-1151) 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 century.

The town was developed and built around the castle, with construction in the 10th century of the castle's collegiate church and of a parish church. In 1226, Louis XI became Count of Beaumont and lived in the castle.

The Hundred Years' War and the Wars of Religion were the reason for construction of the upper part of the walls and the keep. The English occupied the town for forty years and the castle itself between 1420 and 1435, when the French artillery of Henri IV caused major damage to the towers of the fortress.

At the time of the French Revolution, the castle was destroyed and then sold off as a national asset. Archaeological excavations carried out from 1984 have revealed the existence of an 11th-century monastery. The castle is owned by the commune.

User Reviews

La Layette d'Antoinette (2 years ago)
Old fortified castle. Archaeological excavations carried out in 1984 made it possible to find the location of the walls. During the 14th and 15th centuries, the castle underwent numerous destructions and reconstructions (Hundred Years' War), seat of the English, the Burgundians and the Armagniacs. The remaining remains appear to date from the 13th century.

clo cinci (2 years ago)
It is not possible to visit it. It can be observed from the small square in front. It should certainly be promoted as the town's archaeological heritage.

Tristan Le Lay (3 years ago)
Beautiful ruins more or less concerned. Unfortunately not in access or visit.

sos- sauvetages (3 years ago)
magnificent place is steeped in history a bit of a pity that it is not maintained

Pascale Coignard (3 years ago)
We came for the medieval weekend. Congratulations on the beautiful animations: fire-eaters, flights of birds of prey, exhibitors...

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