French Flanders is a part of the historical County of Flanders, where Flemish—a Low Franconian dialect cluster of Dutch—was traditionally spoken. The region lies in the modern-day northern French region of Hauts-de-France, and roughly corresponds to the arrondissements of Lille, Douai and Dunkirk on the northern border with Belgium. Together, with French Hainaut and Cambrésis, it makes up the French Department of Nord.
Territorial changes due to the Treaty of the Pyrenees (1659), including French Flanders
The County of Flanders was one of the most powerful political entities in the medieval Low Countries, located on the North Sea coast of what is now Belgium. Unlike its neighbours, such as the counties of Brabant and Hainaut, it was within the territory of the Kingdom of France. The counts of Flanders held the most northerly part of the kingdom, and were among the original twelve peers of France. For centuries, the economic activity of the Flemish cities, such as Ghent, Bruges and Ypres, made Flanders one of the most affluent regions in Europe, and also gave them strong international connections to trading partners.
Count Philip (2nd from right) as swordbearer at Philip II's coronation. The count of Flanders was one of the 12 ancient Peers or "equals" of the King of France. (1455 panel painting by Jean Fouquet).
Institution of Baldwin I, the first count of Flanders by Charles the Bald, the Frankish king.
The Gravensteen at Ghent, Built by Philip of Alsace
A Flemish lady and gentleman in the year 1400, illustrated in the manuscript "Théâtre de tous les peuples et nations de la terre avec leurs habits et ornemens divers, tant anciens que modernes, diligemment depeints au naturel". Painted by Lucas d'Heere in the 2nd half of the 16th century. Preserved in the Ghent University Library.