Siege of Messina
842 CE.
Shown on the map at 38.183°, 15.550°.
The siege of Messina was launched by the Aghlabids, allied with the Neapolitans, against the Byzantine city of Messina from 842 to 843. The Allied forces managed to capture the city after a long siege.
Text from the Wikipedia article Siege of Messina (842–843), licensed CC BY-SA 4.0.