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Female Cecilia Thweng , Heiress of Flamborough Click to view Cecilia Thweng , Heiress of Flamborough in the family tree

Cecilia was born in 1215 in Flamborough, Bridlington, East Ride Yorkshire, England.  Cecilia's father was Maramaduke de Thweng , Sir Knight and her mother was Emma Darrel , Heiress of Lund.  Her paternal grandfather was Robert de Thweng; her maternal grandfather was Duncan Darrel , of Lund, Sir. She had a brother named Robert de.  She was the younger of the two children.  She died at the age of 50 in 1265.

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