The assault on the wall briefly exposed General Wolf Frederick von Retzow's infantry line. More than two hours had elapsed since the Prince had ordered his cavalry back to Leuthen, but it arrived opportunely. Commanded by Joseph Count Lucchesi d’ Averna the cavalry hurried to take them in the flank; a successful cavalry charge at that critical moment could have turned the tide of battle. Unfortunately for the Austrians, 40 squadrons of Zieten's cavalry awaited them at Radaxdorf and charged their flank;l, and another 30 squadrons commanded by Georg Wilhelm von Driesen charged their front. The Bayreuth Dragoons hit the other flank; and the Puttkamer Hussars charged the rear. Lucchessi was killed by being decapitated by a cannonball, and his troopers were scattered. The cavalry mêlée soon swirled into the Austrian infantry line behind Leuthen, which caused more confusion. Overrun by the Prussian horse, the Austrian infantry broke. The infantry and then the cavalry retreated toward Breslau, where they crossed the Schweidnitzer Weistritz river, then called the "Black Water".