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Female Mary de Ros Click to view Mary de Ros in the family tree

Mary was born about 1264 in Helmsley, York, England.  Mary's father was Sir Robert De Ros and her mother was Isabel d'Aubigny.  Her paternal grandparents were Sir William de Ros and Lucia Fitz Piers; her maternal grandparents were William d'Aubigny and Isabel. She had a brother and two sisters, named William, Isabel and Joan.  She was the youngest of the four children.


Mary's family with William V De Braose

They had a son named William.

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