text: It is also evident that Baret and Commerson shared a more personal relationship, as Baret became pregnant in 1764. French law at that time required women who became pregnant out of wedlock to obtain a "certificate of pregnancy" in which they could name the father of their unborn child. Baret's certificate, from August 1764, survives; it was filed in a town  away and witnessed by two men of substance who likewise had travelled a considerable distance from their homes. She refused to name the father of her child, but historians do not doubt that it was Commerson and that it was Commerson who had also made the arrangements with the lawyer and witnesses on her behalf.
  Shortly afterwards, Baret and Commerson moved together to Paris, where she continued in the role of his housekeeper. Baret apparently used the name "Jeanne de Bonnefoy" during this period. Her child, born in December 1764, was given the name Jean-Pierre Baret. Baret gave the child up to the Paris Foundlings Hospital. He was quickly placed with a foster mother but died in the summer of 1765. (Commerson had left his legitimate son from his marriage in the care of his brother-in-law in Toulon-sur-Arroux and never saw him again in his lifetime.) A second son, Aimé Eugĕne Prosper Bonnefoy, was born at the Hôtel-Dieu in Paris in May 1766. The fate of this child is unknown but he appears to have died before 1775.