William de ROS 
William de was born about 1244 in Igmanthorpe, England. He died before May 28th, 1310.
They had a daughter named Lucy (Roos) de.
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Children
Lucy (Roos) de ROS
Lucy (Roos) de was born in 1270 in Plumpton, Yorkshire, England. She died at the age of 55 in 1325.