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Female Isabel (Matilda) de Mar Click to view Isabel (Matilda) de Mar in the family tree

Isabel (Matilda) de was born about 1278 in Kildrummy Castle, Aberdeenshire, Scotland.  Isabel (Matilda) de's father was Donald 6th Earl de Mar , Sir Knight and her mother was Helen verch Llewelyn.  Her paternal grandparents were William 5th Earl de Mar , Sir and Elizabeth Comyn; her maternal grandparents were Llewelyn ap Iorwerth , Prince of Wales and Unknown Mistress. She had a brother and two sisters, named Gratney 7th Earl de, Margaret (Marjory or Mary) de and Margaret of.  She was the youngest of the four children.  She died before 1302.

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