Battle of Mühldorf
1322 CE.
Shown on the map at 48.276°, 12.560°.
The Battle of Mühldorf (also known as the Battle of Ampfing) was fought near Mühldorf am Inn on September 28, 1322 between the Duchy of (Upper) Bavaria and the Archduchy of Austria. The Bavarians were led by German King Louis of Wittelsbach, while the Austrians were under the command of his cousin, Anti-king Frederick of Habsburg.
Text from the Wikipedia article Battle of Mühldorf, licensed CC BY-SA 4.0.