From https://mixedgenes.eu/bagley-of-dudley/
t has been suggested that the Bagley children received more than Elizabeth’s other children in her will – something that has prompted many to suggest John’s wife was her daughter – because these other children were otherwise taken care of. This is quite possibly true. On the other hand, I now have copies of the original wills of some of these children as well as that of John. My preliminary conclusion is that in addition to the money and land the children received from Elizabeth [Tomlinson] and Edward [Lord Sutton], John himself had nearly as much, if not more, to bequeath than some of the other “children”. Again, inconclusive at best.
Loyal “servant”, son-in-law or brother-in-law? We may never know.