Siege of Mutina
217 BCE.
Shown on the map at 44.646°, 10.926°.
The siege of Mutina in 218 BC constitutes one of the first episodes of the Second Punic War. Hannibal's diplomacy in Cisalpine Gaul persuaded the Gallic Boii and Insubres tribes to revolt and drive the Roman colonists out of Piacenza (Placentia) and push them as far as Modena (Mutina), which was then besieged.
Text from the Wikipedia article Siege of Mutina (218 BC), licensed CC BY-SA 4.0.