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Female Lucy de Thweng of Ingmathorpe Click to view Lucy de Thweng of Ingmathorpe in the family tree

Lucy de's father was Marmaduke de Thweng and her mother was Isabel de Ros.  Her paternal grandparents were Marmaduke de Thweng and Lucy de Brus; her maternal grandparents were Sir William De Ros II and Eustace FitzHugh.  She was an only child.

Family Details of Lucy de's family with Robert de Lumley

Sources/Citations
royal_lineage.ged, June 2006, http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=remme1007&id=I203126

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