Enguerrand VII De Coucy
Enguerrand VII was born in 1342 in Coucy-le-Chateau, Aisne, France.  He died in Bursa, Turkey.

 Isabel Plantagenet
Isabel was born on June 16th, 1332 in Woodstock Palace, Oxfordshire, England.  She died at the age of 46 on May 4th, 1379 in Grey Friars, Newgate, Middlesex, England.

 Marie De Coucy
Marie was born in April 1366 in Chateau de Coucy, Coucy-le-Chateau, Aisne, France.  She died at the age of 39 in 1405.

 Philippa De Coucy
Philippa was born in 1367.

 Percival De Coucy
Percival was born about 1376.