Battle of Golpejera
1072 CE.
Shown on the map at 42.237°, -4.660°.
The Battle of Golpejera also known as Golpejar, was an internecine battle among Christian kingdoms fought in early January 1072. King Sancho II of Castile (the Strong) defeated the forces of his brother Alfonso VI of León (the Brave) near Carrión de los Condes. It is notable as being one of the battles in which El Cid participated.
Text from the Wikipedia article Battle of Golpejera, licensed CC BY-SA 4.0.