Anne de Beaujeu marries Edward of Westminister

I was thinking, is it possible for Edward of Westminister to marry Anne de Beaujeu and be granted Gascony?
That wedding would be a waste for both sides, while the matches proposed for Anne (Nicholas of Anjou and Peter of Bourbon) and for Edward (Anne Neville) has clear and real advantages in short term (and likely also in long term)
 
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