Few French, Germans, or Swiss today know where Mömpelgard is located. This is hardly surprising, since its French name today is Montbéliard (Franche‑Comté).
This town has held city rights since 1283 and enjoyed imperial immediacy (Reichsunmittelbarkeit). It is situated not only on the Franco‑German linguistic border, but also at the Burgundian Gate (Burgundische Pforte/Porte de Bourgogne) on the Doubs River.

From the Middle Ages until the French Revolution, it was also an independent county in personal union with the Duchy of Württemberg, almost without interruption. Today, the town has around 27,000 inhabitants and lies in a French‑speaking area. However, German cultural and linguistic influences are unmistakable.

Mons Beligardis, Montbéliard, or Mömpelgard
The name comes from Mons Beligardis, which became Montbéliard in French. In German, it became Mümpelgard and later Mömpelgard. The French‑speaking County of Montbéliard belonged to the Kingdom of Burgundy (888–1032) until 1032. Afterwards, until 1793, it was part of the Holy Roman Empire. The county and town always kept close contact with the French‑ and German‑speaking cultures of Lorraine, the Sundgau, Burgundy, and Switzerland.
This can be explained in particular by the nearly four‑hundred‑year link with the Duchy of Württemberg (1397–1793), as well as by Habsburg possession of the German‑speaking Sundgau (until 1648) and of Alsace (until 1681). Thus, Montbéliard—continuing to use this name—was, like Mulhouse/Mühlhausen (which was allied with the Swiss Confederation until 1792), one of the last independent strongholds during the reign of the French Sun King Louis XIV (1638–1715).
Louis XIV annexed Franche‑Comté (a Spanish Habsburg possession) and the Sundgau (an Austrian possession) in 1648 (Peace of Westphalia). Later, in 1681, he annexed Alsace. Only Montbéliard and Mulhouse were not (yet) annexed.

Montbéliard and the Duke of Württemberg
The male line of the Counts of Montbéliard died out in 1407. The daughter of the last count had already married the Duke of Württemberg in 1397. This dynasty had its administrative centre in Stuttgart in Swabia, but owned numerous other possessions (lands, villages, and small towns) on the left bank of the Rhine, including Héricourt, Blamont, Clémont, Franquemont, and Châtelot, and constituted an important power in the Upper Rhine region and within the Holy Roman Empire.
For Montbéliard, however, this meant integration into the Swabian sphere of influence. This possession was not a peaceful one for the duke: the Bishop of Basel, until 1477 the Duke of Burgundy, and later the King of France, the Habsburgs, and local lords (such as the Counts of Ferrette/Pfirt) coveted the town and its territories. The Swiss Confederation also expressed interest in an alliance as an associated state.

Musée d’Art et d’histoire Hôtel Beurnier-Rossel
After 1477, the Württemberg policy and its possessions in this region were shaped by the Franco‑Habsburg conflict. Through political and diplomatic skill, Württemberg kept both powers away from Montbéliard. The town didn’t want to surrender or fall into the Welsches’ hands, but was determined to remain with the German nation—even at the cost of perishing.

Legal status further shaped these relationships. From the sixteenth century onward, Montbéliard and Württemberg formed a personal union, though Montbéliard was not represented in the Württemberg parliament in Stuttgart. Montbéliard remained a principality. The duke resided only rarely in Montbéliard, preferring Stuttgart; distant relatives administered the county.
Still, a strong cultural, language, and—after about 1524—religious link grew between French-speaking Montbéliard and German-speaking Württemberg. The duke became Lutheran in 1534, after bringing the faith to Montbéliard. The town was even the first Reformed state in what is now France. Guillaume Farel (1489-1565), known in French-speaking Switzerland, was the leading figure of the Reformation in Montbéliard.


The castle and the Museum du château et des ducs de Wurtemberg
The small principality became a refuge for Huguenots and, at the same time, a field of religious conflict between Lutherans and Calvinists, with the Lutherans ultimately prevailing. For the Catholic kings of France, Montbéliard was a Protestant thorn in their side, but they never succeeded in conquering the town.
German culture exerted an increasing influence on originally French‑speaking Montbéliard, not only from Württemberg and Swabia, but also from the Sundgau, Alsace, and the Swiss Confederation. Court life, administration, and German‑speaking pastors, merchants, architects, and craftsmen profoundly shaped local culture. The most famous example is undoubtedly the architect Heinrich Schickhardt (1558-1635).

His buildings—especially the castle, St. Martin’s Church, urban planning, mills, bridges, and the Collegium—still shape the townscape today. At the same time, Montbéliard’s French‑speaking culture influenced court life in Württemberg.
Montbéliard was, in the literal sense, a Franco‑German society. A diplomat expressed it this way in 1681: “For the first time I saw the German customs with astonishment.” Indeed, German clothing, architecture, furniture, language, and culture were omnipresent.

Martins Church
Besides serving as a border town, the Burgundian Gate south of Montbéliard is a key divide between the French-speaking Rhône River area and the mostly German-speaking Rhine. The strong fortress of Belfort, built in the eleventh century by the Count of Montbéliard and rebuilt in the seventeenth century by Sébastien Le Prestre, Lord of Vauban (1633-1707), was the main defence.


The Lion of Belfort
The landscape changed dramatically with the French annexation of 10 October 1793, which ended the County of Montbéliard and its personal union with Württemberg. Afterwards, the former county belonged sequentially to the Rauracian Republic (1793), the Department of Mont‑Terrible (1793–1800), the Department of Haut‑Rhin (1800–1815), and finally the Department of Doubs in the Bourgogne‑Franche‑Comté region.

Département Mont-Terrible (1793-1800). Image: Wikipedia
Porrentruy, Delémont, and the Ajoie
Shifting the focus to the region’s broader connections, in 1162, the Count of Montfaucon acquired the County of Montbéliard. He obtained not only extensive territories in the Pays de Vaud and the Ajoie, but also the town of Pruntrut (Porrentruy) as a fief from the Bishop of Basel.
Centuries later, under French rule from 1793 to 1813, Porrentruy and Delémont became the capitals of the two districts of the successive departments of Mont‑Terrible and Haut‑Rhin. Only in 1815, at the Congress of Vienna (1814–1815), was the (Swiss) link with Montbéliard (and Mulhouse) definitively broken.

Peugeot and Montbéliard
Conclusion
This brief history of Montbéliard illustrates not only the intense and centuries‑long relations among Switzerland, France, and Germany, marked by reciprocal influences and exchanges, but also their abrupt rupture from the nineteenth century onward and the emergence of nation‑states.
However, this historical entanglement does not justify merging into a European political, bureaucratic, and legal model incompatible with the Swiss model, which has been tried and tested for centuries—a model that is not outdated but, on the contrary, holds promise for the future.
Impressions from the castle



Impressions from the Vauban Fort and the city of Belfort














Josephine Baker and Belfort

