Fulbert DE FALAISE Chamberlain
(Abt 980-)
(-Abt 1066)
Cte Robert DE MORTAIGNE Earl of Cornwall
(After 1038-1095)


Family Links


  • Richard DE MORTAIGNE
  • William de Burgo DE MORTAIGNE+
2. Almodis

Cte Robert DE MORTAIGNE Earl of Cornwall

  • Born: After 1038, Mortagne-au-Perche, Orne, Normandy
  • Married (1): Bef 1058
  • Married (2): Bef 1085
  • Died: 8 Dec 1095, Normandy, France
  • Buried: Grestain Abbey, Fatouville-Grestain, Eure, Haute-Normandie, France

   Other names for Robert were Robert DE BURGO of Mortain and Robert DE MORTAIN.

  Research Notes:


Robert, Count of Mortain in Normandy, one of the two sons of Herluin de Co nteville, by Herleve, mother of William the Conqueror, was b. about 103 1. About 1050 he received, from his uterine brother, William, then Du ke of Normandy, the comte of Mortain, and was thenceforth known as Cou nt of Mortain. He accompanied William in the invasion of England, whe re he was in command of the chivalry of the Cotentin at the battle of Hast ings, 1066. His share of the spoil was one of the greatest, as, with t he exception of the lands of the King and the Church, he received nearly t he whole of the county of Cornwall, and is, consequently, usually consider ed Earl of Cornwall, though only known as Comes Moritoniensis. At the ti me of Domesday, he was possessed of 797 manors in various counties, besid es the borough of Pevensey in Sussex, etc. In 1069 he, with Robert, Cou nt of Eu, defeated the Danes in the parts of Lindsey, with great slaughte r. He joined his brother, the Earl of Kent in 1088 in a rebellion again st William II in favour of his brother Robert Courthose, but was subsequen tly pardoned. He m. 1stly, before 1066, Maud, daughter of Robert de Montg omery, Earl of Shrewsbury, by his 1st wife, Mabel, daughter and heir of Wi lliam Talvas (5th son of William de Belleme, Seigneur of Alencon and Belle me). She was buried in the Abbey of Grestain. He m. 2ndly, Almodis. He d. 8 Dec 1090, and was buried with his 1st wife.


Guillaume of Jumièges names “Herleva Fulberti cubicularii ducis filia” as the mother of “Willelmus...ex concubina Roberti ducis...natus“, and that after Duke Robert died “Herluinus...miles” married her by whom he had “duos filios Odonem et Robertum”. Florence of Worcester names Robert as the brother of King William I "but only on his mother's side". Orderic Vitalis records that Guillaume Duke of Normandy granted “multis honoribus in Normannia et Anglia” to “Herluinus...de Contavilla...filios eius: Radulfus, quem de alia conjuge procreaverat, fratresque suos uterinos: Odonis et Rodbertum”.

Orderic Vitalis records that he was installed as Comte de Mortain in 1063 by his half-brother Guillaume II Duke of Normandy, after he dispossessed Guillaume Werlenc. Guillaume of Jumièges records that “Willelmus cognomento Werlencus de stirpe Richardi magni comes...Moritolii” plotted rebellion against Guillaume II Duke of Normandy, as reported to the duke by “tyro de familia sua...Robertus Bigot”, and that the duke expelled him to Apulia and granted his county to “Robertum fratrem suum”. Orderic Vitalis names “...Rodbertus comes Moritoliensis, Willermi ducis uterinus frater...” among the leading lords under Guillaume II Duke of Normandy. King William I granted him nearly all the land of Cornwall as a reward for his participation at the battle of Hastings in 1066, but he does not seem to have been created Earl of Cornwall, continuing to be referred to as "comes Moritoniensis". "Robertus Moretonii comes frater Villelmi Anglorum regis et Normannorum principis" granted property to the abbey of Saint-Benoît-sur-Loire by charter dated 9 Jan 1083. He joined his brother Eudes in the 1088 rebellion against King William II but was pardoned.

The necrology of the church of Mortain records the death "8 Dec" of "Robertus comes Moretonii fundator istius ecclesie" 1 2

   Marriage Information:

Robert married Mathilde DE MONTGOMERY, daughter of Roger DE MONTGOMERY 1st Earl of Shrewsbury and Mabilia (Mabel) DE TALVAS de Alençon-Bellême, before 1058. (Mathilde DE MONTGOMERY died about 1085 in Buried at Grestain Abbey and was buried in Grestain Abbey.)

   Marriage Information:

Robert also married Almodis before 1085. (Almodis was born about 1055 in France and died in 1107.)


1 G. E Cokayne, (Sutton Publishing Ltd, 2000), III:427-8 as corrected by XIV:207.

2 Foundation for Medieval Genealogy, http://fmg.ac/Projects/MedLands/NORMAN%20NOBILITY.htm#RobertMortaindied1091.

Home | Table of Contents | Surnames | Name List

This Web Site was Created 30 Nov 2015 with Legacy 4.0 from Millennia