The Battle of Pritzlawa (Prinzlowa) in 1056 took place near present Quitzöbel between the Saxons and the Slavic Liutizen.
The battle was a disaster for the Saxons, killing many knights and their leader William, Margrave of the Nordmark.
He reported that Emperor Henry II met there several times with Poles, resulting more often than not in war rather than peace.
Both William and Dietrich fell in this battle, where a ruined castle still overlooks the confluence of the Havel and the Elbe.
The news of this defeat apparently seriously impacted the seriously ill Emperor Henry III, possibly hastening his death.