Battle of Skuodas
1258 CE.
Shown on the map at 56.236°, 21.441°.
The Battle of Skuodas or Schoden was fought in ca. 1259 near Skuodas in present-day Lithuania during the Lithuanian Crusade. The Samogitian army of 3,000 invaded Courland and on their way back defeated the Livonian Order, killing 33 knights and many more low-rank soldiers. In terms of knights killed, it was the eighth largest defeat of the Livonian Order in the 13th century. This victory led to a Semigallian insurrection against the Livonian crusaders, which lasted from 1259 to 1272.
Text from the Wikipedia article Battle of Skuodas (1259), licensed CC BY-SA 4.0.