Earl of Cornwall Robert de Mortain
1031 - 1090 (59 years)(
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- 1 Earl of Cornwall Robert de Mortain [1] b. 1031 d. 8 Dec 1090
- + Matilda Maud Montgomerie b. 1041 d. 1085
- + Matilda Maud Montgomerie b. 1041 d. 1085