Siege of Abbasabad
1827 CE.
Shown on the map at 39.150°, 45.383°.
The Capture of Abbasabad was the siege and capture by Russian troops of the Persian fortress Abbasabad, in the Nakhichevan Khanate, during the Russo-Persian War of 1826–1828. The siege lasted from July 13 to 19 July, during which Russian troops defeated the Persian troops of the crown prince Abbas-Mirza. Soon after this, the fortress capitulated.
Text from the Wikipedia article Capture of Abbasabad, licensed CC BY-SA 4.0.