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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 Plantagenet Cts de Gloucester.  His maternal grandparents were Edward I Plantagenet and Alianore de Castille Cts de Ponthieu. He had three half-sisters named Alianor, Margaret and Elizabeth.  He died at the age of 38 on June 24th, 1340 in Battle of Sluys.

Family Details of Thomas' family with Margaret Unknown

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