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Male William deMowbray Click to view William deMowbray in the family tree

William was born about 1251.  William's father was Roger deMowbray and his mother was Maude De Beauchamp.  His paternal grandparents were Baron William III deMowbray and Agnes deAubigny; his maternal grandparents were Lord William deBeauchamp and Ida deLongespée.  He was an only child.


William's family

He had a biological daughter named Constance.

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