The Battle of Cedynia occurred on 24 June 972 in Cedynia. It was the first historically recorded battle in the history of Poland. Polish duke Mieszko I and his brother Czcibor defeated Hodon , the German Margrave of Brandenburg. This battle secured the western border of Polish territory. Information about this battle is found in the Gall Anonim Chronicle and the Thietmar Chronicle . In the city there is a monument erected after World War II.