Battle of Jičín
1866 CE.
Shown on the map at 50.437°, 15.352°.
The Battle of Gitschin or Jičín (German: Schlacht bei Gitschin) took place during the Austro-Prussian War on 29 June 1866, ending with a Prussian victory over the Austrian forces. There is a memorial there today at Jičín in the Czech Republic.
Text from the Wikipedia article Battle of Gitschin, licensed CC BY-SA 4.0.