Engerrand I de Coucy
Engerrand I was born in 1042 in Coucy, Aisne, Picardy, France.¹   He died at the age of 74 in 1116 in Coucy, Aisne, Picardy, France.¹ 

 Ada de Marne
Ada was born in 1054 in Reims, Marne, Champagne, France.¹   Ada is no longer alive.

 Thomas I de Coucy
Thomas I was born in 1073 in Coucy, Aisne, Picardy, France.¹   He died at the age of 57 in 1130 in Coucy, Aisne, Picardy, France.¹