Siege of Derbent
1173 CE.
Shown on the map at 42.069°, 48.296°.
Siege of Derbent in 1173 or 1174 was a successful siege of Derbent, by the Shirvanese and Georgian allies against Rus', Alan and Kipchak raiders.
Text from the Wikipedia article Siege of Derbent, licensed CC BY-SA 4.0.