She subsequently buried the bodies in the garden of her parents' home and her own home nearby in Villers-au-tertre.
The defence had argued for her acquittal due to her disturbed mental condition.
The former nursing assistant Cottrez said she had been raped by her father as a child and had an incestuous relationship with him. She killed her babies fearing that they were fathered by her father,She later admitted to making up the alleged relationship when tests showed the babies had been fathered by her husband.
Cottrez' managed to hide her pregnancy from her husband, neighbors and even doctors at a nearby hospital due to obesity.