As the French and their German allies closed in on Rosenberg, Stutterheim led four squadrons of hussars in a charge which stopped the advance of some of Davout's troops near Unter-Laichling. Later, he directed four squadrons of Chevau-légers in a spirited counterattack against French skirmishers. These enemies, who threatened a key hill called the Bettel Berg, were driven off. Later, a division of French cuirassiers and German-allied cavalry approached the Bettel Berg. Stutterheim joined in a cavalry countercharge, but this time the Austrians were routed and most of the guns were captured when the hilltop was overrun. At 9:00 AM on the morning of the 23rd, French cuirassiers attacked Stutterheim's rearguard and Charles sent an uhlan regiment to his assistance. This was the start of the Battle of Ratisbon.