Siege of Fort Bard
1800 CE.
Shown on the map at 45.609°, 7.745°.
The siege of Fort Bard (also known as Bard Fort) was a military action that took place during May 1800 during the second Napoleonic Italian campaign and blocked the advance of Napoleon Bonaparte's Armée de Reserve for 12 days in the narrow passage. Fort Bard was commanded by Captain Josef Stockard von Bernkopf with approximately 300 Austrian troops and 100 Sardinian soldiers.
Text from the Wikipedia article Siege of Fort Bard, licensed CC BY-SA 4.0.