The couple were reported missing in early January when their car was found abandoned on the motorway.
A manhunt ensued and they were eventually found and arrested in Brighton in late February.
Timeline of events in the Constance Marten and Mark Gordon case
The Greater Manchester Police launch an investigation after Marten and Gordon’s car is found abandoned and on fire on the motorway outside Bolton.
Marten’s father, Napier Marten, appealed for her to turn herself in. He said: “I beseech you to find a way to turn yourself and your wee one in to the police as soon as possible so you and he or she can be protected.”
The Metropolitan Police offered a £10,000 reward for information that leads to the family being found.
Virginie de Selliers, Marten’s mother, published a letter telling her daughter she has her support and that she is not alone.
Marten and Gordon were arrested in Brighton on suspicion of child neglect without their baby.
Marten and Gordon were re-arrested on suspicion of gross negligence manslaughter as police continued to search for the baby using sniffer dogs, drones and helicopters.
Sussex police said they found body of their baby, a girl named Victoria, was found in a shed at an allotment.
The couple were charged with gross negligence manslaughter. They were also accused of concealing the birth of a child and perverting the course of justice.
Marten and Gordon are due to appear at Crawley magistrates’ court in West Sussex on Friday, charged with gross negligence manslaughter, concealing the birth of a child and perverting the course of justice.