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Male William De MOWBRAY KNIGHT/KNIGHT Click to view William De MOWBRAY KNIGHT/KNIGHT in the family tree

William De was born about 1287 in <Of, Kirklington, Yorkshire, England>.  William De's father was Roger De MOWBRAY and his mother was Roese (Rohesia) De CLARE.  His paternal grandparents were Roger de MOWBRAY and Maud de BEAUCHAMP; his maternal grandparents were Richard de CLARE EARL OF GLOUCESTER and Maud de LACY. He had two brothers and a sister, named Alexander, John De and Constance.  He was the youngest of the four children.

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