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Male Guillaume I 'Longsword' Duke of Normandy Click to view Guillaume I 'Longsword' Duke of Normandy in the family tree

Guillaume I 'Longsword' Duke of was born in Normandy,France.1   Guillaume I 'Longsword' Duke of's father was Rollo (Rollon, Granger Rolf) Duke of Normandy Ragnvaldsson and his mother was Poppa (perhaps) Duchess of Norway de Bayeux.  His paternal grandparents were Rognvald 'the Wise' Jarl of More Eysteinsson and Rognhild (Hildir) Hrolfsdotter. He had a sister named Adela of.  He died in France.1 


Guillaume I 'Longsword' Duke of's first family with Sporta de Bretagne

‌Guillaume I 'Longsword' Duke of and Sporta were married in a religious ceremony before 0933.  They had a son named Richard I "Sans Peur" Duke Of.


Guillaume I 'Longsword' Duke of's second family with Liutgarde de Vermandois

‌Guillaume I 'Longsword' Duke of and Liutgarde were married in a religious ceremony in 0940.

1 Royalty for Commoners: The Complete Known Lineage of John  of Gaunt, Son of Edward III, Kin(Royalty for Commoners)
Further source/citation:
Pedigree Resource File CD 6

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