Earl of Cornwall Robert de Mortain
1031 - 1090 (59 years)-
Name Robert de Mortain [1, 2, 3] Title Earl of Cornwall Birth 1031 Haute-Normandie, France 
Gender Male Fact 1 Half Brother of WIlliam I the Conqueror [1] Death 8 Dec 1090 Haute-Normandie, France - Abbey St Grestain
Person ID I6827 Presidents and Royalty Last Modified 8 Jun 2025
Father Harlevin de Counteville, b. 1001, France d. 1066, Mortain, Manche, Basse-Normandie, France (Age 65 years) Relationship natural Mother Harlette de Falaise, b. 1003, Falaise, Calvados, Basse-Normandie, France d. 1050, Mortagne, Orne, Basse-Normandie, France (Age 47 years) Relationship natural Family ID F4525 Group Sheet | Family Chart
Family Matilda Maud Montgomerie, b. 1039, Mortagne, Orne, Basse-Normandie, France d. 1085, Mortagne, Orne, Basse-Normandie, France (Age 46 years) Marriage 1066 Family ID F4482 Group Sheet | Family Chart Last Modified 8 Jun 2025
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Sources - [S777] Montgomery, Thomas Harrison, Genealogical History of the Family of Montgomery, (Name: Printed for Private Circulation; Location: Philadelphia; Date: 1868;), Electronic Book .PDF 170 pages a_genealogical_history_of_the_family_of_.pdf.
- [S913] Bio Info on Roger II 1st Earl of Shrewsbury, (Name: Wikipedia; Location: http://en.wikipedia.org/wiki/Roger_of_Montgomery,_1st_Earl_of_Shrewsbury;), http://en.wikipedia.org/wiki/Roger_of_Montgomery,_1st_Earl_of_Shrewsbury.
- [S1273] Wikipedia Listing of Earls, (Name: Wikipedia; Location: en.Wikipedia.org;), Earl of Cornwall Accessed KRM15 Nov2020 8:16am https://en.wikipedia.org/wiki/Earl_of_Cornwall en.wikipedia.org.
https://en.wikipedia.org/wiki/Earl_of_Cornwall
- [S777] Montgomery, Thomas Harrison, Genealogical History of the Family of Montgomery, (Name: Printed for Private Circulation; Location: Philadelphia; Date: 1868;), Electronic Book .PDF 170 pages a_genealogical_history_of_the_family_of_.pdf.