Gerard's corps (with which was Kellermann's cuirassier corps) halted astride the Sambre at Chatelet.
Milhaud's Cuirassier corps and Lobau's (VI.) corps were south of the Sambre, between Charleroi and Jamioulx.
In any case D'Erlon could not come back in time to give him effectual help. But incapable of grasping the situation, and beside himself with rage, Ney sent imperative orders to D'Erlon to return at once, and immediately afterwards he ordered Kellermann to lead his one available cuirassier brigade and break through Wellington's line.
The right of Milhaud's cuirassier corps, whilst marching from Marbais to Quatre Bras, saw a column of Prussian infantry retiring towards Wavre, and Milhaud reported this fact about 9 P.M.