On Sunday, January 31, 2016 at 12:57:14 PM UTC-8, Kevan Barton via wrote:
> Thank you kindly for the input. If we play with the idea that she was
> indeed daughter and heir to a Gerard, but that she was born more likely
> around 1275-1280 (per John Watson's input), then indeed we need to look for
> another Gerard.
>
> Okay, as an heir, she would have brought property into the Foljambe
> marriage. Has anyone looked to see what, if any, property she brought with
> her at her marriage or later as an heir? The "heir" bit of her history
> should be able to be proven.
There appears to have been a Gerald de Furnival about this time who had heiresses. This is all from dubious sources, but it may represent an area for further investigation.
The book Hallamshire: The History and Topography of the Parish of Sheffield shows a chart of the Furnival family.
https://books.google.com/books?id=ML8-AAAAcAAJ&pg=PA31
It shows that Gerard, husband of Maud Fitz John, had an uncle, Gerard of Munden Furnival. Another book, The House of Cornewall, shows this Gerard to have had by Christian Ledet a son Gerard, who would be first-cousin of Maud Fitz John's Gerard. He is shown marrying Joan de Morville, co-heiress of Hugh de Morville (sic) and having co-heiress Christian de Furnival, wife of John Eylesford.
https://books.google.com/books?id=TY1DAQAAMAAJ&pg=PA78
The Morville marriage has been questioned here, for example:
http://archiver.rootsweb.ancestry.com/th/read/GEN-MEDIEVAL/2005-11/1132428092
Another heiress would seem to be the Lora said to have married John Ufflete and then Geoffrey le Scrope.
https://books.google.com/books?id=uioJAAAAIAAJ&pg=PA104
This looks like a more likely Gerard than the husband of Maud Fitz John, although I can find nothing but internet pedigrees that explicitly show Alice, wife of Thomas Foljambe as daughter of this Gerard.
taf