Ingeborg Tryggvasdotter
Encyclopedia
Ingeborg Tryggvasdotter was the daughter of Tryggve Olafsson
Tryggve Olafsson
Tryggve Olafsson was king of Viken, Norway ....

, the granddaughter of Harald Fairhair, and the sister of Olaf I of Norway
Olaf I of Norway
Olaf Tryggvason was King of Norway from 995 to 1000. He was the son of Tryggvi Olafsson, king of Viken , and, according to later sagas, the great-grandson of Harald Fairhair, first King of Norway.Olaf played an important part in the often forcible, on pain of torture or death, conversion of the...

.

She married Ragnvald Ulfsson
Ragnvald Ulfsson
Ragnvald Ulfsson the Old was a jarl of Västergötland or Östergötland, and married to a sister of Olav Tryggvason.Ragnvald is mentioned in the skaldic poem Austrfaravísur, ascribed to Sigvatr Þórðarson, skald of King Olaf Haraldsson of Norway , who had been on a diplomatic mission to Sweden...

, first the earl
Earl
An earl is a member of the nobility. The title is Anglo-Saxon, akin to the Scandinavian form jarl, and meant "chieftain", particularly a chieftain set to rule a territory in a king's stead. In Scandinavia, it became obsolete in the Middle Ages and was replaced with duke...

 of Västergötland
Västergötland
', English exonym: West Gothland, is one of the 25 traditional non-administrative provinces of Sweden , situated in the southwest of Sweden. In older English literature one may also encounter the Latinized version Westrogothia....

 and later of Staraja Ladoga. They had two sons, Ulf and Eilif, who became earls in Kievan Rus'
Kievan Rus'
Kievan Rus was a medieval polity in Eastern Europe, from the late 9th to the mid 13th century, when it disintegrated under the pressure of the Mongol invasion of 1237–1240....

.
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