William Alfred (Mortimer) Knight (abt. 1320 - 1350)

I would not use Wikipedia as a resource guide since anybody and including myself being a member on that site that I can add or subtract information with or without a bibliography site marker. Even all colleges and universities are not allowed to use Wikipedia as a bibliography site for papers or thesis writing. But getting on to William A Mortimer Knight, it is still accepted by most scholars that at the time of Roger De Mortimer’s execution, Isabella was pregnant with his child. The official record states that she lost the baby in childbirth, but others are not so sure. I am getting this information from other relatives who have done extensive research in England and France. There are reports that the baby was smuggled out of the castle by Isabella’s friend and supporter Adam Orleton, the Bishop of Worcester, and given to a sympathetic family. It would make sense, since a male child of this union would have almost certainly been seen as a threat to the throne and would not have been allowed to live. In case you haven’t guessed, that baby is said to have been William Alfred Knight, my ancestor. There have been well known cases of famous illegitimate birth of Royal families. Most recent case was King Louis XIII of France's wife/Queen Maria Theresa had an illegitimate daughter, Louise Marie Thérèse (The Black Nun of Moret).

I have now detached: 1. a wife with a name that didn't exist until about 1850, 2. a mother who was a duplicate of the attached father's mother, 3. Roger de Mortimer, who was highly unlikely to be his father.

Can someone help me to understand how the Knight name came from the Mortimer name ?

Time to detach this profile out of respect to the parents? No one was ever called William Alfred anything in 1320.

This person may or may not actually exist. There's a lively debate out there about him and how unlikely his origin story is.

http://edwardthesecond.blogspot.com/2012/07/when-genealogy-goes-wrong.html

Wikipedia lists Margaret Mortimer as the mother of Roger Mortimer (1st Earl of March), Joan Geneville is Roger's spouse and the mother of all of his children. Is there any more sources for this person? He is a connecting point to part of my family tree to a large number of noblemen and women (including Charles Martel), and there is little to no information regarding him.