Laon Arrondissement

Fortifications and ruins in Laon

Discover the military and religious heritage surrounding the medieval hilltop city of Laon. This collection spans centuries of defensive architecture, from the massive 13th-century ruins of Château de Coucy to 19th-century Séré de Rivières forts like Mons-en-Laonnois. Explore the skeletal remains of Benedictine abbeys at Saint-Vincent and Saint-Nicolas-aux-Bois, alongside feudal keeps and leaning towers that once protected the Picardy landscape. These sites offer a glimpse into the region’s strategic importance through the Middle Ages, the Hundred Years' War, and the modern era.

Fortifications & Ruins — Map

Markus3 / CC BY-SA 2.5

A

Château de Coucy

The Château de Coucy is a French castle in the commune of Coucy-le-Château-Auffrique, in Picardy, built in the 13th century and renovated…

Marc Ryckaert / cc-by-sa-4.0

B

Château de Blérancourt

17th-century residence of the Dukes of Gesvres, designed by architect Salomon de Brosse. It now houses the Franco-American Museum, showcasing the history of cooperation between the two nations.

G.Garitan / CC BY-SA 4.0

C

Abbey of St Vincent, Laon

The Abbey of St. Vincent, Laon was a Benedictine monastery in Laon, Picardy, northern France.

D

Ancienne église Notre-Dame-la-Profonde

12th-century church ruins located in Laon. The site preserves elements of early medieval religious architecture within the city's historic core.

E

Tour penchée

A leaning medieval tower that forms part of Laon's extensive defensive walls and historic fortifications.

F

Fort de Mons-en-Laonnois

A late 19th-century fortification belonging to the Séré de Rivières system, built to modernize France's border defenses after the Franco-Prussian War.

Havang(nl) / CC0

G

Tour de Vaurseine

12th-century defensive tower situated twelve kilometers southeast of Laon, serving as a historic lookout point for the surrounding plains.

Amédée Piette 1808-1883 / Public domain

H

Château d'Arrancy

An 18th-century castle and estate located in Arrancy, representing the transition from defensive strongholds to residential manor houses.

I

Ancienne abbaye bénédictine de Saint-Nicolas

Former Benedictine monastery founded in the 11th century. Significant ruins include the 13th-century refectory and remnants of the monastic enclosure.

J

Vestiges du château de Soupir

Remains of a 16th-century Renaissance castle. Most of the structure was destroyed during World War I, leaving only the monumental entrance gate standing.

K

Ancien château féodal

A late 13th or early 14th-century fortified house in Aulnois-sous-Laon, illustrating the medieval transition between a farm and a castle.

L

Ancien donjon

A 15th-century keep in Cerny-lès-Bucy, the sole surviving remnant of a fortified house that was largely destroyed during the Hundred Years' War.

M

Château de Saint-Gobain

Ruins of a 13th-century castle later integrated into the industrial history of the Saint-Gobain glassworks.

N

Fort de Montbérault

A 19th-century fort built as part of the defensive belt protecting Laon, featuring the characteristic stone and earthwork construction of the Séré de Rivières era.

Other Lists

Arrondissement de Laon Essentials Best of Laon Historic Heritage Sites Religious Sites