Ingeborg Tryggvasdotter was the daughter of Tryggve Olafsson, 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, Ulf and Eilif, who became earls in Kievan Rus'.
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| Name | Tryggvasdotter, Ingeborg |
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| Short description | Norwegian royal |
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