Shapur II's Siege of Bezabde
360 CE.
Shown on the map at 37.402°, 42.067°.
Shapur II besieged the fortress city of Bezabde in Zabdicene in 360, held by the Romans. Despite adamant resistance from three Roman legions and local archers, the Sasanians led by Shapur II successfully besieged and captured Bezabde. A battering-ram reportedly brought down one of the towers, through which the besiegers entered the city. Later that year, Constantius II tried to retake Bezabde, but was unsuccessful.
Text from the Wikipedia article Shapur II's siege of Bezabde, licensed CC BY-SA 4.0.