Marshal Emmanuel de Grouchy, comte de Grouchy, Grouchy's report to Napoleon evening of 17 June (1815)
“ Sire, — I have the honour to report to you that I occupy Gembloux, and that my cavalry is at Sauvenières. The Enemy, about thirty thousand men strong, continues his movement of retreat. We have seized here of his, a pen of 400 horned cattle, magazines and baggage.It would appear according to all the reports, that, on arrival at Sauvenières, the Prussians divided themselves into two columns: one of which took the road to Wavre, passing by Sart-lez-Walhain ”
