Siege of the Acropolis
1826 CE.
Shown on the map at 37.979°, 23.716°.
The second siege of the Acropolis in 1826–1827 during the Greek War of Independence involved the siege of the Acropolis of Athens, the last fortress still held by the Greek rebels in Central Greece, by the forces of the Ottoman Empire.
Text from the Wikipedia article Siege of the Acropolis (1826–1827), licensed CC BY-SA 4.0.