波列斯瓦夫一世
The Peace of Bautzen (; ; ) was a treaty concluded on 30 January 1018, between the Ottonian Holy Roman Emperor Henry II and the Piast duke of the Polans Bolesław I Chrobry which ended a series of Polish-German wars over the control of Lusatia and Upper Lusatia ("Milzenerland" or "Milsko", the eastern part of the margraviate of Meissen ("Miśnia")) as well as Bohemia, Moravia and Slovakia.