To the north of the Oudeburg, on the other side of the Lys, is the Marche du Vendredi, the principal square of the city.
To continue the strife when Wellington was firmly established on the line of the Garonne, and Lyons and Bordeaux had hoisted the Bourbonfleur de lys, was seen by all but Napoleon to be sheer madness; but it needed the pressure of his marshals in painful interviews at Fontainebleau to bring him to reason.
The numerous affluents of these rivers, such as the Lys, Dyle, Dender, Ourthe, Ambleve, Vesdre, Lesse and Semois, provide a system of waterways almost unique in Europe.
The principal tributaries are the Lys and the Dender.
It is divided by the river Lys, leaving one part on French (department of Nord), the other on Belgian territory (province of West Flanders).