Robert De Ros & Margaret de Bruce 
They had two sons named Sir Robert and Sir William.
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Personal Details
Robert De Ros
Robert was born in 1227 in Wark Castle, Wark-on-Tweed, Northumberland, England. He died at the age of 47 on April 20th, 1274 in Wark Castle, Wark-on-Tweed, Northumberland, England.
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Children
Sir Robert de Ros
Sir Robert was born in 1260 in Wark Castle, Wark-on-Tweed, Northumberland, England. He died at the age of 36 on March 28th, 1296 in Sanquhar, Dumfrieshire, Scotland.
Sir William De Ros
Sir William was born in 1270 in Wark Castle, Wark-on-Tweed, Northumberland, England. He died at the age of 40 on May 9th, 1310 in Kendal Castle, Westmoreland, Cumbria, England.