The Battle of Dadosesani Land, also known as the Battle of Dadosesani Forest, was the battle fought on 1 September 1015 during the German–Polish War, between the army of the Duchy of Poland led by Bolesław I the Brave, against the army of the Holy Roman Empire led by Henry II, Gero, and Gero II. It was fought in Lower Silesia, on the land that belonged to the Dadosesani tribe. It was won by Poland, while German forces had retreated.
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