In 1810 Quiot defeated a Spanish division under General Luis de Lacy, taking 800 prisoners and capturing two regimental flags. During the siege of Badajoz, he led two sorties that repelled sallies by the Spanish garrison, suffering a head wound due to canister artillery fire. In 1811, after the Battle of the Gebora, he was made governor of the recently captured Portuguese city of Campo Maior, whose fortifications were not yet repaired. When Quiot learned that a large enemy force under British General William Carr Beresford was approaching, he led a rearguard action, defending against several cavalry charges as his main force retreated to Badajoz. For this feat he received praise from Marshal Édouard Mortier, one of the senior French generals in Iberia, and was promoted to the rank of brigadier general. He served in the indecisive Battle of Albuera against a combined British, Portuguese, and Spanish force before returning to France.