One of four sisters and one brother (Herfast de Crépon), presumably of Viking origin. Their parents are not known, and there is no guarantee that they all shared the same father and mother....
Guillaume de Jumièges records that "Gunnor" had “excepta Sainfria...duas sorores Wewam et Avelinam”, adding that Wewa married “Turulfo de Ponte-Audomari...filius...Torf” by whom she had “Humfridum de Vetulis patrem Rogerii de Bellomonte”. She and her three sisters, as well as their husbands, are named by Robert de Torigny. The Genealogia Fundatoris of Tintern Abbey, Monmouthshire records that the (unnamed) sister of ”Gunnora comitissa Normanniæ” married “Turulpho de Ponte-Adomaro”. 1
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