Siege of Tournai
1340 CE.
Shown on the map at 50.600°, 3.383°.
The siege of Tournai (23 July - 25 September 1340) occurred during the Edwardian phase of the Hundred Years' War. The siege began when a coalition of England, Flanders, Hainaut, Brabant and the Holy Roman Empire under the command of King Edward III of England besieged the French city of Tournai. This siege would end in the Truce of Espléchin, marking the end of the Tournaisis campaign of 1340.
Text from the Wikipedia article Siege of Tournai (1340), licensed CC BY-SA 4.0.