French judges have charged 20 people over the ISIS-directed attacks on Paris in 2015 that killed 130 people.
This includes a Belgian man believed to have masterminded the attack who was once held in Iraq's notorious Abu Ghraib prison before being freed and sent home.
Three of the group, including the alleged mastermind, Oussama Atar, are believed to have died in the group's final months of fighting in Iraq and Syria.
Also accused is the only survivor of the Paris cell, Salah Abdeslam, who was arrested near his home in Brussels after months on the run. Abdeslam's brother, Brahim, blew himself up in Paris.