Gunhilda of Wenden was a Polish princess, daughter of Mieszko I of Poland according to Chronicles of Thietmar of Merserburg, Adam von Bremen and Acta Cnutonis regis princess and Danish Viking Age queen consort, the supposed spouse of 10th-century King Sweyn I of Denmark (c. 960–1014).
In the 13th century collection of sagas, Heimskringla, Snorri Sturluson tells that Sweyn Forkbeard was captured in an attack on the Jomsvikings, and turned over to Burislav, king of Wenden.
There is scant material in medieval chronicles to provide details regarding the marriages of Sweyn of Denmark: Several alternative interpretations of these data have been proposed.
Further, the dual marriage reported by Adam of Bremen matches the Heimskringla account of Sigrid the Haughty.
[1] Finally, it is possible that Gunhild is simply a legendary invention, not directly based on Sweyn's known Polish wife.