John Monoclus De Burgo & Margdaline Of Yorkshire 
They had a son named Eustace.
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Personal Details
John Monoclus De Burgo
John Monoclus was born in 1090 in Tonbridge, Normandy, France. He died at the age of 48 in 1138 in Knaresborough Castle, Yorkshire, England.
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Children
Eustace Fitzjohn De Burgo
Eustace was born about 1080 in Knaresborough Castle, Yorkshire, England. He died on July 3rd, 1157 in Alnwick Castle, Northumberland, England.
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