|de Burgh, William , Earl E. Cornwall, Count Mortaigne||ABT. 1060||AFT. 1140||dav4is||Census|
|Father: Robert de Burgo , Count Mortaigne Mother: Matilda (Maud) de Montgomerie Spouse: Isabel FitzRichard , Countess E. Cornwall|
|de Burgh, William, Earl E. Cornwall, Count Mortaigne,||ABT 1060||ABT 1140||jackson_anc||Census|
|Father: Robert, Count Mortaigne, de Burgo Mother: Matilda (Maud) de Montgomerie Spouse: Isabel, Countess E. Cornwall, FitzRichard|
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