William I (Sir) DE ROS & Lucia FITZPIERS 
William I (Sir) and Lucia were married in a religious ceremony in 1227 in Helmsley, North Riding, Yorkshire, England. They had two sons named Robert III and William (Sir).
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Personal Details
William I (Sir) DE ROS
William I (Sir) was born about 1192 in Helmsley, North Riding, Yorkshire, England. He died about 1264 in Kirkham, Lancashire, England.
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Children
Robert III DE ROS , Lord of Helmsley
Robert III was born about 1223 in Helmsley, North Riding, Yorkshire, England. He died on May 17th, 1285 in Helmsley, North Riding, Yorkshire, England.
William (Sir) de Ros
William (Sir) was born in 1244 in Helmsley, North Riding, Yorkshire, England. He died before May 28th, 1310 in Ingmanthorpe, Yorkshire, England.
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