Ancien donjon
About Ancien donjon
Ancien donjon is one of 5 inscrit historic monuments in Clermont, the second of France’s two levels of protection. It dates from the 11th & 12th c. It has been inscrit since 1950. 5 more historic monuments stand within 400 m.
Le donjon de Clermont ou château des comtes de Clermont est le reste d'un château féodal datant du XIe siècle situé à Clermont (Oise), dans la rue du même nom. Construit à la pointe du promontoire que forme la promenade du Châtellier, il s'agit d'une construction quadrangulaire de 25,50 m sur 17,50 m. Le monument domine la ville, même s'il a été surbaissé par un effondrement causé par la tempête de février 1984.
From Wikipédia (French), article “Donjon de Clermont” · CC BY-SA 4.0 · read October 28, 2026
MHRead its Mérimée recordThe Culture ministry’s notice PA00114598 on POP↗Inscrit is the second level: the building is worth keeping, and any work on it must be declared to the State in advance.
Make it a walk: 4 monuments in about 10 minutes
Clermont · about 0.4 mi on foot, as the crow flies
2 more historic monuments within 150 m
C classé · I inscrit. Each opens its own page.
Other buildings like it nearby among the historic monuments
With a photo, within 25 mi; other towns first.
Questions about Ancien donjon
Is Ancien donjon protected?
Yes. It is inscrit, the second of France’s two levels of protection as a historic monument since 1950 (Mérimée record PA00114598).
Can you visit Ancien donjon?
The list doesn’t say when it is open. Many monuments open on the Journées européennes du patrimoine in September; the town hall or tourist office can tell you more.
When was Ancien donjon built?
By the list’s record, it dates from the 11th & 12th c.
Sources: Ministère de la Culture, Mérimée base on POP (immeubles protégés au titre des monuments historiques), October 2026 · Wikimedia Commons and Wikidata (photos of the monuments, each with its own credit and license) · IGN Admin Express (boundaries). Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.