The Directory of Royal Genealogy shows Awelina, parent's unkown.
From: Todd A. Farmerie (taf2@po.cwru.edu)
Subject: Robert de Torigny and the family of Gunnor, Duchess of Normandy
Newsgroups: soc.genealogy.medieval
Date: 1996/12/03
Duvelina, a second sister of Gunnor, married Turulf de Pont Audemer, son of a Norman founder Torf, and uncle of the first of the Harcourts. They had at least one son, Humphrey de Vielles, who in turn was father of Roger de Beaumont, another Conquest-era baron.
Maloney, Hendrick & Others - J. H. Maloney