There is a Robert Aiguillon who had a dau. Margery who m. one Giles d'Argentem.  The dates are right but there needs to be a tad more evidence before stating that Ela and Margery were sisters.

In Coll. Top. et Gen. in a Plea-Roll pedigree in Vol I, p. 276 there is a Luke de Ponings, son and heir, who was the son of Isabella de Aguillon.  This Isabella was one of four sisters and apparent co-heirs:

1. Agatha m. N. de Kokefield, w/son Adam
2. Isabella (Is ‘Ela’ short for Isabella?)
3. Johanna m. a Fitzbernard, w/ son Ralph - in CP under FitzBernard
4. Margery m. a de Sakevill, w/son Andrew.

Thier faher Robert does not have hs wife shown and was the son of Agatha de Beaufon.  Agatha also was one of four daus and co-heirs of Fulk de Beaufon who was alive in the time of King John.
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Again Chris Phillips’ research solves the above, and John Ravilious suggests that Ela is a short version of or an error for Isabella.  See Chris’ site <www.meievalgenealogy.org.uk>
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