The About text states:
Robert, the progenitor of the great house of Pierrepont, held one of the largest, if not the largest manor in Sussex, Hurst-Pierpoint, extending over several different parishes, which was transmitted to his descendants in unbroken male succession for nearly three centuries. Hugh, Robert, and William, who witness a deed of their suzerain's in the Lewes chartulary previous to 1148, were probably his sons. Hugh left only a daughter named Beatrix, married to William de Warren, Lord of Wirmegay
and yet the existing profile for Beatrix, married to William of Wormegay, if this is the same one, is Beatrix de Wormegay
However this Beatrix has parents listed as Robert de Pierrepont (not Hugh) and Ermengarde de Pierrepont who look suspiciously similar to Sir Robert de Pierrepont and Ermengarde de Montaigu
It seems likely to me that there is something wrong in this part of the tree but I dont know how to resolve it definitively.
Can anyone help?