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Male Bjorn Estriden Ulsiusson Click to view Bjorn Estriden Ulsiusson in the family tree

Bjorn Estriden was born in 1021.1   Bjorn Estriden's father was Ulf Thorgilsson and his mother was Margaret Estrid.  His paternal grandfather was Thorgils Sprakling. He had five half-brothers named Svend, Biorn (Bjorn), Asbjorn, Bjorn Estridsson and Niels.1 

Family Details of Bjorn Estriden's family

1 basel.FTW
Further source/citation:
World Family Tree Vol. 9, Ed. 1 @ Tree #2571