Turton has Eva/Dulceline married to Tourade de Pontaudemer, and mother of Josceline. According to Todd A. Farmerie & Alan B. Wilson, citing the latest works, Senfrie was mother of Josceline, but she married a forester of St. Vaast, while her sister Duvelina married Turulf de Pont Audemer.
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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
Gunnor had at least three sisters, of which the oldest appears to have been Senfria (Seinfreda), who was wife of the (unnamed) forester from the area of St. Vaast d'Equiqueville, and it was her charms which are said first to have attracted the attentions Duke Richard I. She appears to have had at least one daughter, Joscelina, wife of Hugh de Montgomery. (Torigny makes Joscelina daughter of another sister, Wevia, but a contemporary of Torigny, in demonstrating the genealogical impediment to a marriage of a bastard of Henry I to a Montgomery descendant specifically calls Joscelina's mother Senfria, and the inheritance by the Montgomerys of large holdings suggests that Joscelina was a significant coheir to her parents, which does not match Wevia's family where two sons would be expected to acquire most of the family land.) Hugh de Montgomery and Joscelina had a son Roger, but contrary to Torigny's statements, he was not the Conquest baron of that name, but instead his father. By a wife possibly named Emma, Roger had: Hugh; Roger (who married Mabel of Belleme and played a significant role in pre-Conquest Normandy); William (who murdered cousin Osbern); Robert, and Gilbert.
Maloney, Hendrick & Others - J. H. Maloney