So I was roaming the roads of Skyrim in werewolf form when I came across Taron Dreth and three mercs. He stopped me and asked me where I got the Aetherial Crown and I told him that I knew Katria. He then proceeded to say I knew too much and had his guards attack me. I killed them all.
EDIT: For those of you who don't know he was the one that stole all of Katria's work and published it as his own, so I think he deserved it.