Robert De Mortaigne, son of Herluin Vicomte De Conteville … and Harlette Herleve, was born about 1040 in Normandy and died on December 8, 1091. He married Mathilde De Montgomery De Montgomery, daughter of Roger De Montgomery … and Mabile De Belleme Dame D'alencon …, before 1066. She was born about 1039 in Mortaigne, France and died about 1085.

Emma De Mortain De Mortaigne, daughter of Robert De Mortaigne and Mathilde De Montgomery De Montgomery, was born about 1058 in Mortagne-Au-Perche and died in 1075. She married Guillaume IV Comte De Toulouse Guillaume, son of Pons Guillaume II Comte De Toulouse Count and Almodis De La Marche Almodis, in 1070. He was born in 1040 and died in 1094 in Huesca, Spain at the age of 54.

Philippa Mathilde De Toulouse De Toulouse, daughter of Guillaume IV Comte De Toulouse Guillaume and Emma De Mortain De Mortaigne, was born about 1073 in France and died on November 28, 1117 in Fontrevault, France. She married Guilliaume IX Of France, son of Guillaume Vi-Viii Duke Of Aquitaine … and Hildegarde De Bourgogne …, in 1094. He was born on October 22, 1071 in France and died on February 10, 1126 at the age of 54. Philippa Mathilde De Toulouse De Toulouse and Guilliaume IX Of France were divorced.