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Male William De Ros III Click to view William De Ros III in the family tree

William was born in 1255.1   William's father was Sir Robert De Ros IV and his mother was Isabel d'Aubigny.  His paternal grandparents were Sir William De Ros and Lucy Brecknock FitzPiers; his maternal grandparents were 5th Earl of Arundel Hugh d'Aubigny and Isabel de Warenne. He had two sisters named Isabel and Joan.  He was the oldest of the three children.  He died at the age of 61 in 1316.1 

Family Details of William's family with Maud De Vaux

Family Details of William's family with <Unknown>

1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I76378&style=TABLE

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