Baron Crispin de Bec
Crispin was born about 0944.

 Heloise de Guisnes
Heloise was born in Guisnes, Picardy, France.

 Mareschal  Rollo de Bec of Normandy
Rollo was born in 0985 in Bec, Normandy, France.

 Count Gilbert FitzGodfrey Crispin I of Brionne & d'Eu
Gilbert FitzGodfrey was born in 0990 in Tilliers, Normandy, France.  He died  due to assasinated at the age of 50 in 1040 in Bec, Eure, Normandy, France.