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A Portrait of King Boleslaus I of Poland
Burislav, Burisleif, Burysław (died 1008) is the name of a legendary Wendish king from Scandinavian sagas who is said to rule over Wendland. He is said to be father of Gunhild, Astrid and Geira. There are three possible hypotheses over his identity: first, that there actually was a Slavic prince of that name; second, that this was the name given by saga authors to any Slavic prince; third, that he is a compound person, combining two Polish rulers: Mieszko I of Poland and Boleslaw I of Poland.