Marie de Mortaigne 
Marie's father was Baldwin I de Mortaigne and her mother was Hiliarde de Wavrin. Her paternal grandparents were Everard III de Mortaigne and Gertrude de Montaigu; her maternal grandparents were Robert de Wavrin and Adele (Alice) de Gand. She had a brother named Everard (Radoul) IV.General Notes
This site is made-up of my own family tree, plus contributions from many others who have shared their research, as well as downloads from from the internet. Not everything has been varified. It should be used with caution, but is a good place to start.
They had a daughter named daughter.
Sources/Citations
Ahnentafel for Margery Arundell, The Plantagenet Ancestry @ p 191, Pullen010502.FTW
Ahnentafel for Margery Arundell, The Plantagenet Ancestry @ p 191, Pullen010502.FTW
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