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Male Sir John de Grey Click to view Sir John de Grey in the family tree

John was born about 1227 in Codnor, Devonshire, England.  John's father was Sir Richard de Grey and his mother was Lucy de Humez.  His paternal grandparents were Baron Henry de Grey of Codner and Isolda Bardolf; his maternal grandfather was John de Humez. He had a sister named Agnes.  He was the older of the two children.


John's family with Lucy de Mohun

‌John and Lucy were married in a religious ceremony about 1249.  They had a son named Henry.

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