Enguerrand III De Coucy
Enguerrand III was born about 1182 in Boves, Somme, France.  He died in 1242.

 Marie De Montmirail
Marie was born about 1184 in Oisy, Aisne, France.  She died about 1267.

 Alix De Coucy
Alix was born about 1219 in Boves, Somme, France.