Siege of Antioch
1268 CE.
Shown on the map at 36.200°, 36.150°.
The siege of Antioch occurred in 1268 when the Mamluk Sultanate under Baybars finally succeeded in capturing the city of Antioch. Prior to the siege, the Crusader Principality was oblivious to the loss of the city, as demonstrated when Baybars sent negotiators to the leader of the former Crusader state and mocked his use of "Prince" in the title Prince of Antioch.
Text from the Wikipedia article Siege of Antioch (1268), licensed CC BY-SA 4.0.