Article R2213-16 of the French General Code of Local Authorities
Only one body is admitted in each coffin. However, the interment in the same coffin of the bodies is authorised: 1° Of several stillborn children of the same mother or children born alive and then deceased after childbirth; 2° Of the mother and one or more of her stillborn children or children born alive and then deceased after childbirth. The 1° and 2° apply only if the first death occurs…