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Male William de Ros Click to view William de Ros in the family tree

William was born about 1196 in Helmsley, Yorkshire, England.  William's father was Robert De Ros and his mother was Isabel De Huntingdon.  His paternal grandparents were Everard de Ros and Roise Trussebut; his maternal grandfather was William MacCrinan and his maternal grandmother is Isabel De Avenal. He had a half-brother named Thomas.  He died in 1264 in Poitou, France.

William's family with Lucy FitzPiers

‌William and Lucy were married in a religious ceremony about 1225.  They had two sons named Robert and William.

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