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Male Robert de Mortaigne , Earl of Cornwall Click to view Robert de Mortaigne , Earl of Cornwall in the family tree

Robert de was born about 1031 in Mortagne-au-Perche, Orne, Normandy, France.  Robert de's father was Harlevin (Herlouin) Vicomte de Conteville and his mother was Herleve (Arlette) de Falaise.  His maternal grandparents were Fulbert de Falaise and Doda. He had a brother and three sisters, named Odo Bishop of, Emma de, Muriel de and Miss de.  He was the second oldest of the five children. He had a half-brother and a half-sister, named William I "The Conqueror" King of and Adelaide of.  He died on December 8th, 1095 in Abbey of St. Grestain, Normandy, France.

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