Siege of Fort Augustus
1746 CE.
Shown on the map at 57.143°, -4.681°.
The Siege of Fort Augustus took place from 22 February to 1 March 1746, during the Jacobite rising of 1745. After a short siege, the government garrison surrendered to a Jacobite force, which then moved on to besiege Fort William, using artillery captured at Fort Augustus.
Text from the Wikipedia article Siege of Fort Augustus (1746), licensed CC BY-SA 4.0.