Mitford was a minor character in Akatsuki EN-Eins series, first mentioned in EN-Eins Perfektewelt Anastasis. She was a prototype clone (presumably cloned from a real life Unity Valkyrie Mitford) who directly serves as a template for Tempelritter cloning batch, and Fritz's excellency.
Little known about her past, it all begins at the beginning of World War II, where she stumbled upon Heiligelänze and touches it. The moment after she touches the lance, the soul of Battle Maiden Valkyria resides within it and begin to possess Mitford's body. This cause Mitford to commit a suicide by shooting her own head before Valkyria immediately possess her. However, as the lance fuses with her body, and her corpse healed shortly, Mitford failed as her soul cease after her death, with Valkyria's soul becomes dormant within Mitford's body.
