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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 , 4th Baron Hamlake De Ros and his mother was Isabel Stewart.  His paternal grandparents were Everard De Ros and Roese De Trussebutt; his maternal grandparents were I, King of Scotland William and UNKNOWN Avenel.  He was an only child.  He died about 1264 in In King's Service,Poitou,FRANCE Buried at Kirkham,ENGLAND.1 


William's family with Lucia FitzPiers

They had two sons named Robert and William.

1 Brøderbund WFT Vol. 1, Ed. 1, Tree #1142, Date of Import: Apr 27, 1996
Further sources/citations:
Ancestral File (TM), GEDCOM File : 46438.ged, GEDCOM File : rowland2.ged