The Shrews Archives have Page 1 of abstract of will 1726 of Edward Baldwyn, a Shrewsbury mercer, enclosing pedigree showing the descent of his estate to his great-nephew Thomas Jelf Powys [of Berwick House; testator descended from a brother of William Baldwyn of Elsich].

Another entry is for the full will:

Place:               Shropshire Archives
System Reference:    X6000/16/13/3258
Document Reference:  6000/3258
Date:                07 Dec 1726
Level:               Item
Description:         Will of Edward Baldwyn of Inner Temple Esq dated December 7th 1726.
                     His lands & linements in Shrewsbury to sister Bridget, wife of
                     Thomas Powys of Shrewsbury with remainders. Brother Henry. all his
                     manors etc in Shropshire to Brother Henry & sons; remainder to
                     Bridget Powys. Nephews Henry, Edward and John Powys.
                     Trustees Jasper Blythman of Inner Temple & Charles Baldwyn
                     of Clements Inn.
                     Witnesses - Pierce Manaton, John Cornthwaite, Henry Adam. ( Copy)
                     From a paper enclosed the Shropshire estates were Stapleton & Wilderley.
                     On permanent loan from Alderman Howe.
Held At:             Shropshire Archives
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It looks like Edward was the son of Francis and dsp.  If he had a brother Henry who had sons, then Bridget could not have been his heir, save in the sense that she was a beneficiary of a will.
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I wonder if these holdings received by Bridget enabled the purchase of Berwick?