Marc Dutroux

Regina Louf (born 1969), also known as witness X1 in the Dutroux case, is a victim of organised sexual abuse and author. She was one of the most prominent witnesses in the case around Marc Dutroux.

Sabine Anne Renée Ghislaine Dardenne (born 28 October 1983) is a Belgian author. She was kidnapped at the age of twelve by the child molester and serial killer Marc Dutroux in 1996. Dardenne was one of Dutroux's last two victims. She and fellow captive Laetitia Delhez survived, though the bodies of four other kidnap victims and Dutroux's accomplice were found on the property.