Xion

Ranked as XIV in Organization XIII. Her and Roxas' absense in the Organization resulted in the need to recruit an additional nobody to wield the Keyblade.

Key Plot Points
Xion is defeated before Mandroxa or any of the other newer members join Organization XIII.

==Demise ==

Xion was defeated by Roxas after Xemnas tricked them into fighting each other. Although she was not technically a true member of the Organization, her rank was kept as XIV and so Mandroxa was ranked XV after her.