ROBERT I de VITRE
ROBERT I was born in 1087.¹   He died at the age of 74 in 1161.¹ 

 EMMA de la GUERCHE
EMMA was born in 1090.¹   She died at the age of 71 on April 10th, 1161.¹ 

 ROBERT II (III) de VITRE
ROBERT II (III) was born in 1132 in Brittany, France.¹   He died at the age of 42 on November 11th, 1174.¹ 

 Marguerite de VITRE
Marguerite was born in 1140.¹