Battle of Soor
1745 CE.
Shown on the map at 50.515°, 15.899°.
The Battle of Soor (30 September 1745) was a battle between Frederick the Great's Prussian army and an Austro-Saxon army led by Prince Charles Alexander of Lorraine during the Second Silesian War (part of the War of the Austrian Succession). The battle occurred in the vicinity of Soor, also known as Hajnice, in the modern day Czech Republic. The battle started with a failed Austrian surprise attack on the outnumbered Prussians. Despite initial setbacks the Prussian army managed to defeat the Austrians, due to an unexpected attack from a reserve regiment that refused to follow Frederick's orders.
Text from the Wikipedia article Battle of Soor, licensed CC BY-SA 4.0.