Roger III de Wavrin
Roger III was born in 1139.  He died at the age of 21 in 1160.

 Yolande Mathilde de Mortagne
Yolande Mathilde was born in 1120.  She died at the age of 48 in 1168.

 Ancilla de Wavrin
Ancilla was born in 1135.  She died at the age of 61 in 1196.

 Agnès de Wavrin
Agnès was born in 1155.  She died at the age of 64 in 1219.