Snorri Thorfinnsson in "The Saga of the Greenlanders"
Chapter 6
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At this time Gudrid, Karlsefni’s wife, gave birth to a boy, who was named Snorri.
[...]
Chapter 8
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After Karlsefni’s death Gudrid took over running the household, together with her son Snorri who had been born in Vinland.
When Snorri married, Gudrid travelled abroad [...] and returned to her Son Snorri’s farm. [...] Snorri had a son named Torgeir, who was the father of Yngveld, the mother of Bishop Brand. Snorri Karlsefnisson’s daughter Hallfrid was the wife of Runolf, the father of Bishop Thorlak. Bjorn, another son of
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Karlsefni and Gudrid, was the father of Thorunn, the mother of Bishop Bjorn.
Source: Unknown, "[Snorri Thorfinnsson in] The Saga of the Greenlanders" in The Sagas of Icelanders: A Selection, preface by Jane Smiley, introduction by Robert Kellogg, (New York, London, Victoria (Australia), Toronto, Auckland: The Penguin Group, 2000), 636-652. Notes: Translations first published in "The Complete Sagas of Icelanders," volumes I-V (forty-nine tales), Leifur Eiriksson Publishing, Ltd., Iceland, 1997.