Guillaume (William) de Mortaigne, Comte de Mortaigne, 3rd Earl of Cornwall

1060 - 1140  (80 years)

• Name	Guillaume (William) de Mortaigne
  Suffix	Comte de Mortaigne, 3rd Earl of Cornwall
  Birth	1060	Mortagne-au-Perche, Orne, Lower Normandy, France
  Gender	Male
  Fact	http://en.wikipedia.org/wiki/William,_Count_of_Mortain
  Fact	https://www.geni.com/people/Guillaume-de-Mortaigne-Comte-de-Mortaigne-3rd-Earl-of-Cornwall/6000000003051219297?through=6000000009967802867
  _FSFTID	GSTN-VXQ
  _UID	1005828A943157468D1E338DD46CFCB1DBBA
  Death	1140	Bermondsey, London, England, United Kingdom
  Burial	Bermondsey Abbey
  Person ID	I32042	Ken Tree
  Last Modified	3 Nov 2019

  
  

  Father	Robert de Mortagne, 2nd Earl of Cornwall, Count of Mortain,   b. 1031, Mortagne-au-Perche, Orne, Lower Normandy, France d. 8 Dec 1090, Mortain, Manche, Lower Normandy, France (Age 59 years)
  Mother	Maude (Matilda) de Montgomery, Comtesse consort de Mortain,   b. 1041, Calvados, Normandy, France d. 1085, Fatouville-Grestain, Eure, Upper Normandy, France (Age 44 years)
  Marriage	France
  _UID	B7D3662E66AB7D4FBEAC1F15A6EE6122B08E
  Family ID	F14779	Group Sheet  |  Family Chart

  
  

  Father	Robert, Count of Mortain,   b. Abt 1037, Mortain, Avranches, Manche, Normandy, France d. 8 Dec 1090, Eure, Upper Normandy, France (Age 53 years)
  Mother	Matilda de Montgomery, Comtesse de Mortain,   b. 1041, Calvados, Normandy, France d. 1107, Abbey St Grestain, Normandy, France (Age 66 years)
  Marriage	1058
  _UID	D00C3F3D3C095F41AC421A498C8239D2A7A2
  Family ID	F14780	Group Sheet  |  Family Chart

  
  

  Family	Countess Isabel FitzRichard de Clare,   b. Abt 1065, Tonbridge, Kent, England, United Kingdom d. 1121, Breconshire, Wales, United Kingdom (Age 56 years)
  _UID	DE8281D408E0BD4ABFC2743FCABDAA616A99
  Children	1. Aldhelm De Mortaigne,   b. 1085, Burgh Castle, Norfolk, England, United Kingdom d. 1185, Norfolk, England (Age 100 years)   2. Grecia de Cumberland,   b. 1110, Gilsland, Northumberland, England d. 1162, Chertsey, Surrey, England, United Kingdom (Age 52 years)   3. John De Burgh   d. DECEASED
  Family ID	F15294	Group Sheet  |  Family Chart
  Last Modified	1 Apr 2026