Battle of Cabezón
1808 CE.
Shown on the map at 41.733°, -4.646°.
The Battle of Cabezón was an engagement early in the Peninsular War on 12 June 1808 between Spain's Army of Castile, under Cuesta, based at Valladolid, and detachments of Marshal Bessières' French Army Corps under generals General Lasalle and Merle. Lasalle occupied Valladolid without opposition that same evening. Merle's column consisted of six battalions and two squadrons, while Lasalle's was made up of four battalions and two regiments of chasseurs. Cuesta's forces consisted of four cannon and 4,000 or 5,000 volunteers, who had not been more than a fortnight under arms, plus 300 cavalry, his only veteran troops.
Text from the Wikipedia article Battle of Cabezón, licensed CC BY-SA 4.0.