The French autumn counterattack started with the Siege of Astorga.

On 29 June, the Spanish troops of Lieutenant-General Francisco Gómez de Terán y Negrete, Marquess of Portago, started the operations, and laid siege to Astorga.

The Spanish VI Army led by General José María Santocildes, by order of General Francisco Castaños, take the measures necessary for the recovery of Astorga.

On 18 August, after a hard resistance, the French garrison surrendered to the Spaniards.

[1] During the siege, part of the Spanish troops marched towards Salamanca to join the Allied army under Arthur Wellesley, commanded by General Santocildes, and contributed successfully in the campaign with the capture of Tordesillas, blocking Toro and Zamora, and occupying Valladolid.