On 14 July at Medina de Rioseco, with 14,000 men under the command of Bessierès, he fought against over 20,000 Spaniards. Lasalle marched towards Vitoria, commanding the rearguard, and protecting the French from another breach made by the enemy. As a result of these actions, he was named Grand Officer of the Legion of Honor and made a Count of the Empire.