Where did she come from? I'm not sure. :) I do, however, know she's a character in an old story that was discarded (and then worked into a different one). In that story, she was bound by an infernal influence – or artifact – to an icy hell, eventually absorbing its essence and becoming its warden.
Latest update, 9/12
Couple of hours on and off. No reference so far, but I'm probably going to need some for the hand. :}