I have found many public member trees that indicate that Alexander "The Fierce", King of Scotland (1078-1124) and Sybilla Elizabeth Fitz Henry (1091-1122), illegitimate daughter of King Henry the 1st, are the parents of Aveline Ales, Princess of Scotland (1109-1159).
However, Wikipedia & other online encyclopedias state that this couple was childless.
Does anyone have proof of Aveline's parentage?