Pressing danger could only exist if Blucher had gone northwards, and northwards, therefore, in the Dyle valley, he should have diligently sought for traces of the Prussian retreat.'
Had Blucher gone eastwards, Grouchy, holding the Dyle, could easily have held back any future Prussian advance towards Wellington.
By nightfall the situation was all in favour of the allies; for Grouchy was now actually outside the four Prussian corps, who were by this time concentrated astride the Dyle at Wavre.
Instead of concentrating his force upon one bridge over the swampy and unfordable Dyle, Grouchy scattered it in attacks upon several; and when the emperor's despatch arrived, saying Billow was in sight, the marshal was powerless to move westward.
In 1796 he was appointed by the Directory commissioner for the organization of the departments of Dyle and Mont-Tonnerre.
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.
During these and the next few years there is mention of more than one king of the names Sigefridus and Godefridus: the most important event associated with their names is that two kings Sigefridus and Godefridus fell in the great battle on the Dyle in 891.
It is now situated on the Dyle, and is in the province of Antwerp, lying about half-way between Antwerp and Brussels.