Robert de Mortaigne Earl of Cornwall
Robert de Mortaigne Earl of was born in 1040 in Normandy, France.  He died at the age of 50 on December 8th, 1090 in France.

 Matilda De Montgomery
Matilda was born in 1040 in Montaigne, Sud-Mnch, France.  She died at the age of 45 in 1085.

 Richard De Mortaigne
Richard was born in 1058 in Normandy, france.

 William de Mortaigne Earl of Cornwall
William de Mortaigne Earl of was born in 1058 in Cornwall, England.  He died at the age of 82 in 1140.

 Agnes De Mortaigne
Agnes was born in 1060 in Montaigne, Sud-Mnch, France.