She is married to Erik IV "Victorious" Bjornsson King of Sweden.
They got married after 0985 at 2nd wife.Sources 1, 2
Child(ren):
Erik, having disposed of Sigrid, took for a second wife Oda, the daughterof Jarl Hakan of Norway. Later, we are told, Erik married Gunnhild, adaughter of Mieszko of Poland, and a sister to Boleslav I, Poland's firstking. Most historians express som uncertainty about Erik's other wives,but Lagerkvist assures us that there is no doubt about Erik's marriage toGunnhild. [Royal Families of Medieval Scandinavia, Flanders, & Kiev]