Nothing is known about Diana's early life. Prior to the events of the Shannara Chronicles, Diana was in a relationship with Ander Elessedil, the youngest of the three Elven princes. Ander witnessed the death of his eldest brother Aine at the hands of the Gnome assassin Slanter, during a murder attempt on their father King Eventine. Wracked by guilt, he turned to alcohol to cope. His relationship with Diana suffered due to his behavior, and she eventually left him to move on to a relationship with Ander's other brother Arion.