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Female Mary de Monthermer Click to view Mary de Monthermer in the family tree

Mary was born about 1301 in ,Gloucestershire,England.  Mary's father was Ralph de Monthermer and her mother was Joanna "Of Acre" of England.  Her maternal grandparents were Edward I, "Longshanks" Plantagenet King of England and Eleanor de Castilla. She had a brother named Thomas.  She was the older of the two children. She had a half-brother and three half-sisters, named Gilbert II, Eleanor, Margaret and Elizabeth.

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