Ingeborg Tryggvasdotter

Ingeborg Tryggvasdotter was the daughter of Tryggve Olafsson (died 963), the granddaughter of Harald Fairhair, and the sister of Olaf I of Norway.

She married Ragnvald Ulfsson, first the earl of Västergötland and later of Staraja Ladoga. They had two sons, Uleb Ragnvaldsson and Eilif, who became earls in Kievan Rus'.