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Female Hatwige Click to view Hatwige in the family tree

1   Hatwige's father was Eberhard Margrave Of Friuli and her mother was Gisele Unknown.  Her paternal grandparents were Hunroch Margrave Of Friuli and Engeltron; her maternal grandparents were Louis I The Fair and Judith Of Bavaria. She had a brother named I.1 

Family Details of Hatwige's family with Ludolph

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 4, Ed. 1 @ Tree #0574, 0574.ftw