User blog comment:Jopjopjop/SlashDog/@comment-73.178.133.185-20141014021339/@comment-16281343-20141016174330

@anon We aren't talking about Walburga but the other magician that is the possessor of Absolute Demise under Grauzauberer, a Magician Association under Mephisto.

~Anyway, after investigating further, Lavinia might very well be the possessor of AD. The first thing that came to my mind why she wouldn't be that person is I initially thought that she's a member of Grigori and that contradicts with her being a member of Grauzauberer.

But on Ishibumi's list, Natsume, Samejima, and Tobio are all under Grigori but not her. Meaning she's not a member of Grigori.