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 siege was part of the Allied offensive in the summer of 1812. 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.[1]
Esdaile, Charles J. (1988). The Spanish Army in the Peninsular War. Manchester University Press. ISBN0-7190-2538-9.
Lovett, Gabriel H. (1965). Napoleon and the Birth of Modern Spain New York UP. London. ISBN0-8147-0267-8.{{cite book}}: CS1 maint: location missing publisher (link)
Wellesley, Arthur (2012). The dispatches of Field Marshal the Duke of Wellington, during his various campaigns from 1799 to 1818. London.{{cite book}}: CS1 maint: location missing publisher (link)