Robert VII De Béthune
Robert VII was born about 1200.  He died in 1248.  He was buried in , Arras, 62,.

 Isabeau De Morialmes
Isabeau was born in 1190.

 Mathilde De Béthune
Mathilde was born in 1220.  She died at the age of 44 on November 8th, 1264.