Town · Grand Est · Altitude 453 m
Langres
A walled hilltop town near the source of the Marne: Diderot’s birthplace, with 3.6 km of ramparts to walk all the way round.
Why go
Langres is the kind of place French people drive past on the motorway to the south, which is exactly why you should stop. The whole old town sits on a limestone spur, wrapped in ramparts you can walk all the way round, with towers built for artillery and long views over the plateau that divides the Paris basin from the Saône valley. Inside are a Romanesque-Gothic cathedral, Renaissance mansions and a museum to Denis Diderot, the town’s most famous and most unruly son.
History
The spur has been occupied since the Neolithic. In Roman times, as Andematunnum, it was the capital of the Lingones, the Gaulish people who gave the town its later name; a Gallo-Roman gate still stands in the walls. Langres became an important bishopric, and from the twelfth century its bishops were also dukes and peers of France, among the great lords of the realm.
The cathedral of Saint-Mammès, dedicated to Mammes of Caesarea, a third-century martyr, was built in the late twelfth century. At the end of the Middle Ages the kings strengthened the town as a frontier fortress: Louis XI had the Saint-Ferjeux tower built in 1472, one of the first artillery towers able to fire in every direction, and the massive Navarre tower followed in the 1510s, inaugurated by Francis I. In the Renaissance the bishops and canons commissioned tapestries and mansions, and a cutlery trade grew up in and around the town.
On 5 October 1713 Denis Diderot was born here, son of a master cutler. He left for Paris as a young man and became the driving force of the Encyclopédie. In 1884, for the centenary of his death, the town renamed his birthplace square after him and raised a bronze statue of him by Bartholdi. Another child of the town, Jeanne Mance, had left in the seventeenth century to co-found Montreal.
In the nineteenth century the army added a citadel and remodelled the walls; in 1887 France’s first rack railway was built to carry passengers up from the station to the fortress, running until 1971. Langres today is a quiet sub-prefecture, a ‘town of art and history', and the name of a pungent washed-rind cheese from the surrounding plateau.
What to see
The ramparts walk
Some 3.6 kilometres of walls, towers and gates encircle the old town, and a path runs along the top for most of the way. Look out for the Gallo-Roman gate, the Saint-Ferjeux artillery tower and the huge Navarre tower, and pause at the viewpoint tables that name what you can see on the horizon.
Saint-Mammès cathedral
A late-twelfth-century cathedral at the meeting point of Burgundian Romanesque and early Gothic, behind a classical front raised between 1760 and 1768. Inside, look for the Renaissance chapel of Sainte-Croix, begun in 1549, and the tapestries of the life of Saint Mammès commissioned by Cardinal de Givry in 1543.
Maison des Lumières Denis Diderot
Opened in 2013 in a sixteenth- and eighteenth-century mansion, this museum explains Diderot, the Encyclopédie and the Enlightenment through objects, books and plates from the great work. Then find his birthplace at no. 6 place Diderot, marked by a discreet plaque, and Bartholdi’s statue in the middle of the square.
Langres cheese and the plateau
The town lends its name to a soft, pungent washed-rind cow’s milk cheese. Around it, the Langres plateau separates the Paris basin from the Saône valley; the Marne rises nearby, and the Liez lake lies close to the town, below the edge of the plateau.

Climate
Météo-France normals 1991-2020, station Langres (466 m, 2.5 km away). Sunshine: Langres station (2.5 km).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 3.9 | 5.7 | 10.3 | 14.2 | 18.0 | 21.9 | 24.2 | 24.0 | 19.5 | 14.2 | 8.0 | 4.6 |
| Low °C | -0.8 | -0.3 | 2.4 | 5.1 | 8.8 | 12.1 | 14.1 | 14.2 | 10.6 | 7.3 | 2.9 | 0.1 |
| Rain (mm) | 78 | 63 | 66 | 60 | 82 | 70 | 77 | 70 | 66 | 83 | 88 | 92 |
| Rain days | 12 | 11 | 10 | 10 | 12 | 10 | 10 | 9 | 9 | 12 | 12 | 13 |
| Sunshine (h) | 57 | 87 | 146 | 180 | 199 | 219 | 234 | 222 | 175 | 113 | 62 | 50 |
Timeline
- Roman era Andematunnum, capital of the Lingones
- Late 12th c. Saint-Mammès cathedral built
- 1472? Louis XI orders the Saint-Ferjeux artillery tower
- 1511–1519? Navarre and Orval towers built
- 1713 Birth of Denis Diderot (5 October)
- 1884 Bartholdi’s statue of Diderot unveiled on the renamed place Diderot
- 1887 France’s first rack railway opens (closed 1971)
- 2013 Maison des Lumières Denis Diderot opens
Uncertain or disputed
- Counts of the towers and gates in the walls differ between sources (seven towers and six gates plus the Roman gate in one; a dozen towers and seven gates in another).
- The detailed dates of the towers (Saint-Ferjeux 1472, Navarre and Orval 1511–1519), of the cathedral tapestries (1543) and of the Sainte-Croix chapel (1549) come from a single French source; we have not found a second source to confirm them.
Crowds: Rarely crowded. Langres is never really crowded; summer weekends are the liveliest, and on weekday mornings you may have the ramparts to yourself. (editorial judgement)
Protected food & drink from here
AOP and IGP products whose official area includes this commune (INAO). Regional food: AOP & IGP →
Cheese
- Emmental français Est-Central IGP · pressed cooked cheese
- Gruyère IGP · pressed cooked cheese
- Langres AOP · soft washed-rind cheese
Meat & charcuterie
- Volailles de Bourgogne IGP · poultry
- Volailles du plateau de Langres IGP · poultry
Wine
- Haute-Marne IGP
Festivals within 15 km
From the Ministry of Culture’s national list; it gives a season, not dates.
| Festival | Discipline | Season |
|---|---|---|
| Estival des Hallebardiers Langres | Theatre, dance & street arts | 6 Sep – 31 Dec |
| Festival international de la Photographie d'Art Informel et Création contemporaine Langres | Visual & digital arts | 6 Sep – 31 Dec |
| Jazz à la Lunette Langres | Music | 21 Jun – 5 Sep |
| OUTCH ! - Extreme Metal Festival Langres | Music | 1 Jan – 20 Jun |
| Rencontres philosophiques de Langres Langres | Books & comics | 1 Jan – 20 Jun |
| Tinta'Mars Langres | Theatre, dance & street arts | 1 Jan – 20 Jun |
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Sources
Original text. Train times computed from SNCF timetables (ODbL); climate Météo-France; products INAO; festivals Ministry of Culture. Methodology.
