|Occupation||Member of the Neo-Templar Sect|
|Location||Hagenmeyer Clinic , France|
|Appearance||Broken Sword: The Shadow of the Templars|
Jacques Marquet was a notorious criminal synonymous with using the underground as a means to escapes his crimes, to this end he has been given the nickname The Mole of Montmartre.
Marquet is said to be the person who was to receive Peagram’s package containing the gem according to Sean Fitzgerald. After Fitzgerald accident, George is determined to find him and ask about the gem purpose.
While Marquet is waiting to receive the gem, he is caught by Khan. Marquet is beaten by an assassin. He shouts the name "Moerlin" (Khan's alias) while being sent to a hospital.
During Marquet’s last breathes, George learns that the gem is supposed to be deliver to the Grand Master and that the location of the tripod has been found in Paris. Meanwhile, Klausner is set to Syria.