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

William was born in 1368 in England.1   William's father was Thomas de Roos Baron Roos of Helmesley and his mother was Beatrice de Stafford.  His paternal grandparents were William de Roos IV Baron Roos and Margery de Badlesmere; his maternal grandparents were Ralph de Stafford Earl of Stafford and Margaret de Audley. He had two sisters named Elizabeth and Margaret.

Family Details of William's family with Margaret de Arundel

Family Details of William's family with Margaret de Arundel

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