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Female Katherine de Thweng Click to view Katherine de Thweng in the family tree

Katherine de was born about 1318 in Kilton Castle, Cleveland, Yorkshire, England.  Katherine de's father was Marmaduke 1st Baron de Thweng , of Kilton and her mother was Isabel de Ros.  Her paternal grandparents were Marmaduke de Thweng , Lord of Kilton, MP, Sir and Lucy de Brus; her maternal grandparents were William II de Ros , of Ingmanthorpe, Sir and Eustache FitzHugh. She had two sisters named Alice de and Lucy de.  She was the youngest of the three children.  She died before May 28th, 1374.

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