Talk:Sybilla of Normandy

Questionable Ancestry
According to this article, Sybilla of Normandy's maternal grandfather was Robert Corbet of Alcester. But this website states that her grandfather was Count Robert of Mortain, the brother of William the Conqueror. Which one is correct? UwUpolice1 (talk) 04:08, 18 April 2021 (UTC)