Battle of Sievershausen
1553 CE.
Shown on the map at 52.376°, 10.113°.
The Battle of Sievershausen occurred on 9 July 1553 near the village of Sievershausen (today part of Lehrte in present-day Germany), where the forces of the Hohenzollern margrave Albert Alcibiades of Brandenburg-Kulmbach fought against the united troops of Elector Maurice of Saxony and Duke Henry V of Brunswick-Wolfenbüttel. With 4,000 men killed, including the Saxon elector and two of Henry's sons, it was one of the bloodiest battles on Lower Saxon territory. Margrave Albert was defeated.
Text from the Wikipedia article Battle of Sievershausen, licensed CC BY-SA 4.0.