Dubrawka was first married to Guenther von Merseburg. They had a son named Ekkehard I. Margrave Ekkehard I v. Meissen, duke of Thuringia ,married Suanehild Billung? and their son, margrave Hermann v. Meissen , married Regelinda or Reginlindis , a daughter of Boleslaus or Boleslaw I Chrobry.
After Guenther von Merseburg's death his widow Dubrawka married Mieszko I, who was granted the dukeship by pledging allegiance to the emperor Otto and accepting baptism.
A note on nobility : names entered in Royal and Noble registries such as "Stammtafeln" remain unchanged including the "von" or "von und zu". That is part of the title ,earned , by rendering service to the empire.
H. Stoyan at the University of Erlangen lists Dubrawka as follows: "Dubrawka von Boehmen".