Napoleon receives a dispatch from Davout on the 21st that reports major engagements near Teugen-Hausen.

Davout holds his ground, and although Napoleon sends reinforcements, about thirty-six thousand French troops have to face off against seventy-five thousand Austrians.

When Napoleon finally learns that Charles is not withdrawing to the east, he realigns the Grande Armée's axis in an operation that becomes known as the Landshut Maneuver.

All available French forces, except twenty thousand troops under Bessieres that are chasing Hiller, now hurl themselves against Eckmühl in another bid to trap the Austrians and relieve their beleaguered comrades.