Isabel De Bolebec 
Isabel was born about 1165. Isabel's father was Hugh , 2nd Baron deBolebec Bolebec and her mother was Sibel De Vesey. Her paternal grandparents were Walter I Bolebec and Helawise UNKNOWN. She had a half-sister named Isabel.
Isabel and Robert , Earl of Oxford were married in a religious ceremony in Northumberland,ENGLAND. They had a son named Hugh , Earl of Oxford.
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Children
Hugh , Earl of Oxford De Vere
Hugh , Earl of Oxford was born about 1184 in Hatfield,Essex,ENGLAND. He died before December 23rd, 1263.