Siege of Genoa
1747 CE.
Shown on the map at 44.407°, 8.934°.
The siege of Genoa took place in 1747 when an Austrian army under the command of Count Schulenburg-Oeynhausen launched a failed attempt to capture the capital of the Republic of Genoa.
Text from the Wikipedia article Siege of Genoa (1747), licensed CC BY-SA 4.0.