NOTE: There is an Overleigh at Street in Somerset. However Mathew Ellis said to be father of Angharad held the Manor of Overleigh in Cheshire. 
Before the merge Angharad also had a birth date of 1520.
Probably not the mother of Robert Crosse
The source of information that Anghart Ellis was the wife of William Crosses and the mother of Sir Robert Crosse and his siblings seems to trace to the “Cotgreave Pedigree” that Alfred Goodman published in his genealogy of the Goodman families in the early 1900’s. This pedigree was likely obtained from a Rev. Ralph Bell who supposedly published a book about Sir Robert Crosse in the late 1800’s titled “The Life and Times of Sir Robert Crosse”. The pedigree was allegedly signed by William Camden on August 16th, 1598. The Cotgreave Pedigree states that the Crosse family of Charlench, Somersetshire, descended from a William Crosse de Charlenge and Sutton who was slain at the Battle of Agincourt in 1415. Rev. Bell apparently obtained the pedigree from a descendant of the Cotgreave family.
Dr. Peter Cotgreave published an article in the July 1995 issue of Family Tree Magazine entitled “Spence Pedigree Forgeries”. Dr. Cotgreave obtained several pedigrees involving different surnames that he believes were forged by William S. Spence. (In my correspondence with Dr. Cotgreave in 2002, he indicated that this particular Cotgreave Pedigree was not one that he studied.) Dr. Cotgreave states that the pedigrees usually start with an ancestor who fought in some famous battle such as the Battle of Agincourt and list four or five generations down to a connection with the Cotgreave family. He indicated that several of the pedigrees listed daughters of a Matthew Ellis of Overleigh who married into the various families listed in the forged pedigrees. He further stated that many of the fake pedigrees were attibuted to Camden or another noted genealogist of that era. Dr. Cotgreave claimed that he had studied the British Archives relative to the Cotgreave family and he was unable to find most of the Cotgreaves that are listed in the various pedigrees. He stated that William Spence made money by contacting various families in England and claiming that he had access to papers from his brother-in-law's estate. Spence offered to copy the pedigrees relating to a specific family for a fee.
Matthew Ellis of Overleigh was a real person. To date I have found no primary evidence that Matthew Ellis had a daughter named Anghart (spelled various ways). In his will, William Crosses lists his wife as Elizabeth, not Anghart. It is possible that he was married more than once. Other relationships in the Crosse version of the Cotgreave Pedigree seem to conflict with other sources such as the Visitations of the county of Somerset in the years 1531 and 1573. This document states that William Crosse of Charleng. was the son of William Crosse of Charleng in com. Somersett, and that the younger William Crosse was the father of Sir Robert Crosse and his sister Elizabeth who married Thom. Sidenham of Whetstow in Com. Som. This document does not list the wives of either William Crosse.
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