Battle of Tagliacozzo
1268 CE.
Shown on the map at 42.066°, 13.257°.
The Battle of Tagliacozzo was fought on 23 August 1268 between the Ghibelline supporters of Conradin of Hohenstaufen and the Guelph army of Charles of Anjou. The battle represented the last act of Hohenstaufen power in Italy. The capture and execution of Conradin several months after the battle also marked the fall of the family from the Imperial and Sicilian thrones, leading to the new chapter of Angevin domination in Southern Italy.
Text from the Wikipedia article Battle of Tagliacozzo, licensed CC BY-SA 4.0.