I wonder if Mahaulte is related to
Mahaut, the medieval French nn for
Mathilde. They loved putting an "o" sound on the end to make a nn, which is where
Margot and Isabeau (from
Isabelle) come from. The Mahaulte spelling doesn't actually end in an "o" sound. But it's just begging for me to write it as Mahault, which would end in an "o" sound. This is why names are endlessly fun, for me at least. The human element down through the ages, altering names just a touch, according to language variation or pure whim, can never be discounted.
I always assumed
Maud came from the Anglo-Saxon pronunciation of the first syllable of
Matilda, which in
Norman times was probably closer to "mahd-" than modern "muh-". But that's just a guess. :0)