ClasséCastle · protected 1977Château de la GroulaisPart of the building is protectedPhoto: KaTeznik · CC BY-SA 2.0 fr · Wikimedia Commons
Château de la Groulais · Photo: KaTeznik · CC BY-SA 2.0 fr1historic monument
History of Blain · Monuments historiques
1 historic monument, 1 classé
The ministry listed Blain’s monument in 1977. Its origins go back to the 14th century.
Monuments historiques
1
Classé
1
the highest protection
Inscrit
0
the second level
Oldest part
14th c.
of any listed monument
Homes before 1919
12%
median compared town 7.4%
Map
Where Blain’s monuments stand
Every monument with a point on the ministry’s list; the larger, darker dots are classé.
Classé
Tap a dot to open the monument’s page: its record, photo and the monuments around it.
1 monuments by protection
1 Classé
Classé is the higher protection: any work on the building needs the State’s permission. Work on an inscrit building must be declared to the State in advance. Around both, building work in sight of the monument (usually within 500 m) needs the agreement of the architecte des Bâtiments de France.
Points as the ministry gives them: a monument spread over several plots has one point.
Classé
One classé monument in Blain
Classé is France’s highest protection for a building, held by about a third of the monuments on the list. 1 of the 1 is protected in part only (a façade, a roof, a room). Each card opens the monument’s page.
Age of homes
12% of homes in Blain were built before 1919
Main homes by when they were finished, beside the median compared French town (the tick).
12%
Before 1919
9.1%
1919–45
13%
1946–70
25%
1971–90
20%
1991–2005
21%
2006 on
BlainMedian compared French town
12% of its main homes were built before 1919; the median compared French town has 7.4%. More of them were finished between 1971 and 1990 than in any other period (25%).
INSEE, census 2023: main homes (résidences principales) only; second homes and empty homes aren’t dated.
Born before 1900
6 people born in Blain before 1900
Their lives on one line.
Jacques Yves Bernard Chiron du Brossay
César Marie François Varsavaux
Louis-Émile Jollan
Léonce Couëtoux
Édouard Huet du Pavillon
Marie-Julie Jahenny
175017751800182518501875190019251950
MJ
Marie-Julie Jahenny1850–1941 · French Catholic mystic
JY
Jacques Yves Bernard Chiron du Brossay1765–1834 · French politician
CM
César Marie François Varsavaux1779–1862 · French politician
LÉ
Louis-Émile Jollan1790–1878 · French politician
LC
Léonce Couëtoux1811–1860 · French architect
ÉH
Édouard Huet du Pavillon1819–1908 · French botanist
Everyone born in Blain Birthplaces from Wikidata, checked against Wikipedia.
Neighbors
Historic monuments in the towns around Blain
In brief
Blain in brief
More of Blain’s homes are old than in most places: 12% were built before 1919, against 7.4% in the median compared French town. In all there are 1 historic monument, 1 of them classé, including Château de la Groulais. Of the 6 people born here before 1900, the best known include Marie-Julie Jahenny (1850), Jacques Yves Bernard Chiron du Brossay (1765) and César Marie François Varsavaux (1779). The oldest, Château de la Groulais, dates from the 14th century. The rest is about typical: it has one historic monument, about typical for a town its size (the middle one has 1); and its only entry went on the list in 1977.
How to read these numbers
What this data can and can’t tell you
- Monuments historiques. France protects buildings at two levels. Classé, the higher (about a third of the list), means any work needs the State’s permission; inscrit means work must be declared to the State in advance. The Culture ministry’s Mérimée base lists every protected building, and this page counts them.
- Partly protected. Many entries protect part of a building only (its façades and roofs, a staircase, a painted room). Each counts as one monument, like a fully protected one.
- Where a monument is counted. In the commune named on its protection, moved to today’s commune where communes have since merged. A monument listed for several communes counts in each.
- Sites patrimoniaux remarquables. Since 2016 France’s protected historic areas (the former secteurs sauvegardés, ZPPAUP and AVAP) share one name. Inside one, building work follows the area’s plan and needs the agreement of the architecte des Bâtiments de France.
- What isn’t here. Protected objects (furniture, organs, paintings), old buildings with no protection, UNESCO World Heritage listings and labels such as “Plus Beaux Villages de France” aren’t on this list, so this page doesn’t count them.
- No History Grade yet. Everything on this page is described, not graded: France’s History Grade isn’t built yet.
Questions about the history of Blain
How many historic monuments are there in Blain?
The Culture ministry lists 1 historic monument in Blain: 1 classé and 0 inscrit.
Which monuments in Blain are classé?
One: Château de la Groulais.
How old are the homes in Blain?
12% of its main homes were built before 1919 (median compared French town: 7.4%).
France has no History Grade yet: this page describes, it doesn’t grade.
Sources: Ministère de la Culture, Mérimée base on POP (immeubles protégés au titre des monuments historiques), October 2026 · Ministère de la Culture, sites patrimoniaux remarquables, October 2026 · INSEE, census 2023 (main homes by build period) · Wikidata and Wikipedia (people born here) · Wikimedia Commons and Wikidata (photos of the monuments, each with its own credit and license) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 9, 2026. 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.