Scytheus/The Whisper That Silences The Screams

Not an actual Deathlord per se. However, over the millenia in which she has existed, she has garnered much power and wisdom. Though she does not directly challenge the authority of the Dark 13, it is unknown if she is loyalist or not. Since she has remained somewhat inactive for most of the recent centuries, the Deathlords have turned their attentions more fully to other matters.