William de ROS 
William de was born about 1240 in Ingmanthorpe, Kirk deighton, Yorkshire, England. William de's father was William de ROS and his mother was Lucy FITZPIERS. His paternal grandparents were Robert de ROS and Isabella, Princess of SCOTLAND. He was an only child. He died on May 28th, 1310 in Grey Friars, York, Yorkshire, England.-
Ancestor Pedigree Chart
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- b.~ 1169 in Ros, Holderness, East Riding Yorkshire, England d.<23 Dec 1226 in Helmsley Castle, Norrth Riding Yorkshire, England
- b.~ 1196 in Helmsley Castle, North Rdiing, Yorkshire, England d.1264 in Poitou, France
- b.~ 1240 in Ingmanthorpe, Kirk deighton, Yorkshire, England d.28 May 1310 in Grey Friars, York, Yorkshire, England
- b.~ 1205
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They had a daughter named Lucy de.
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Children
Lucy de ROS
Lucy de was born about 1270 in Ingmanthorpe, Kirk Deighton, Yorkshire, England. She died after 1332.