Robert de ROS & Isabella, Princess of SCOTLAND 
They had a son named William de.
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Personal Details
Robert de ROS
Robert de was born about 1169 in Ros, Holderness, East Riding Yorkshire, England. He died before December 23rd, 1226 in Helmsley Castle, Norrth Riding Yorkshire, England.
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Children
William de ROS
William de was born about 1196 in Helmsley Castle, North Rdiing, Yorkshire, England. He died in 1264 in Poitou, France.