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Male Thomas de Monthermer Click to view Thomas de Monthermer in the family tree

Thomas was born on October 4th, 1301.  Thomas' father was Ralph de Monthermer and his mother was Joan (of Acre) England.  His maternal grandparents were Edward (Longshanks) Plantagenet of England I and Princess Eleanor of Castile. He had three half-sisters named Margaret, Eleanore and Elizabeth.

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