User blog comment:Killiana/THEORY: Frau is Eve's reincarnation/@comment-202.156.10.10-20130422084113

I think the authors named him Frau for amusing irony-considering that Frau is a pervert who flirts with any pretty woman he meets. And even if Frau seemed sad when Teito asked if Ayanami is Verloren's reincarnation, it could be for other reasons-maybe he felt sad for Teito for being pitted against such a formidable opponent, when Teito had already been through so much, or maybe Frau was recalling how he (Frau) ended up in possession of Verloren's scythe-definitely not a happy memory for Frau.