TreeAlive
‹ Base Mérimée: Monuments historiques, France

Base Mérimée: Monuments historiques · France

Château féodal

Beaumont-sur-Oise, Val-d'Oise, France

The record

Designation
Historic monument, classified (classé)
Protection
classé MH
Extent of protection
Site archéologique du château comprenant les parcelles AC 789, 790, 144 à 146 : classement par arrêté du 21 juin 1999
Protection dates
1999/06/21 : classé MH
Type
château fort, site archéologique
Main period of construction
12e siècle
Ownership
propriété de la commune
Address
place du Château
Commune
Beaumont-sur-Oise
Département
Val-d'Oise
Region
Île-de-France
Country
France
Coordinates
49.14398, 2.28609
Mérimée reference
PA00079998

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

5 historical maps cover this location, the earliest the 1750 map "14. Prevoste et Vicomte de Paris." (David Rumsey Map Collection, Stanford Libraries).

Get directions ↗

This record on the Ministère de la Culture's POP platform ↗

The Ministère de la Culture's notice

La ville médiévale de Beaumont-sur-Oise s'est organisée et structurée autour de son château primitif. Dès le 10e siècle, système féodal associant donjon, collégiale castrale et église paroissiale. Cette place forte fut détruite et reconstruite à plusieurs reprises au cours des siècles. Une évolution architecturale du site est lisible allant du 10e au 17e siècle. Des tours et leur enceinte du 13e siècle entourent le large donjon du 12e siècle, rectangulaire, à contreforts obliques et présentant une chapelle absidiale. Une collégiale carolingienne a subsisté. Une nouvelle église est construite au 12e siècle, qui deviendra le prieuré Saint-Léonor. Elle sera abattue après avoir été vendue comme bien national pendant la Révolution. L'ensemble n'est plus qu'une ruine au 19e siècle. Le site est fouillé depuis 1984.

English translation

The text above is the record as published by the Ministère de la Culture, in French. The English below is a machine translation made by TreeAlive, not by the Ministère de la Culture; it has not been checked by a person. Where the two differ, the original is the record. Report a translation error: privacy@treealive.com

The medieval town of Beaumont-sur-Oise organized and structured itself around its original château. From the 10th century, feudal system associating keep, castle collegiate church and parish church. This stronghold was destroyed and rebuilt several times over the centuries. An architectural evolution of the site is readable from the 10th to the 17th century. Towers and their enclosure from the 13th century surround the large rectangular keep from the 12th century, with oblique buttresses and presenting an apsidal chapel. A Carolingian collegiate church survived. A new church is built in the 12th century, which will become the priory of Saint-Léonor. It will be demolished after being sold as national property during the Revolution. The complex is no more than a ruin in the 19th century. The site has been excavated since 1984.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Base Mérimée, Ministère de la Culture, data last updated 2026-09-17, reused under the Licence Ouverte / Open Licence 2.0 (Etalab). Record text is reproduced unchanged. Ministère de la Culture · Licence Ouverte 2.0
See your own family's places on a living map