| Raoul III de Coucy-Poilcourt - Lord and Rebuilder | Rebuilt the castle in 1551, died in 1561. |
| Étienne d'Ivory - Lord of Cambron | Married to Charlotte, heir to Coucy. |
| Adrien de Monjot - Lord of Gercy | Wife Anne d'Ivory in 1642. |
| Philippe François de Monjot - Lord of Cambron | Father of Louis Joseph Dieudonné. |
| Charlotte de Cambron - Inheritance lady | Daughter of Raoul III, wife of Stephen of Ivory. |