波列斯瓦夫一世
The 19th century German historian Johann Ludwig Quandt believed that Zemuzil and other early Pomeranian dukes of the Griffin dynasty descended from Polish nobility of Lesser Poland, that Zemuzil was made a voivode of his duchy by the Polish king Bolesław I Chrobry, and that he was the grand father of Świętobor I. The Austro-Polish historian Oswald Balzer linked the duke with the Piast dynasty through a matrilineal connection, making his mother the daughter of Bolesław I Chrobry. In a similar way, Henryk Łowmiański saw Zemuzil as the son of a daughter of Mieszko I, the first historical ruler of Poland.