Siege of Messina
1847 CE.
Shown on the map at 38.183°, 15.550°.
The siege of Messina during the Sicilian Revolution of 1848 was the final moment in a series of events that, from January to September of that year, pitted the forces of the Sicilian insurgents and those of the Bourbon army against each other in Messina, which, after a series of defeats, recaptured the city at the end of a heavy bombardment. Rather than a siege in the classical sense of the term, it can be described as a very long military operational cycle, with an uninterrupted succession of clashes of varying magnitude and scope.
Text from the Wikipedia article Siege of Messina (1848), licensed CC BY-SA 4.0.