Jean I (Signeur) de BETHUNE
Jean I (Signeur) was born about 1318.¹   He died in 1378.¹ 

 Jeanne de COUCY
Jeanne was born in 1323.¹   She died at the age of 40 in 1363.¹ 

 Jeanne de BETHUNE
Jeanne was born in 1351.¹   She died at the age of 29 in 1380.¹