I beilive that there was a person like this, because there is old documents, that state an old queen of Romaina drank blood of young maids, and rats, and animals.

I did mispell tons of this in that post, because I have a hard time hearing the History Channel :P
Then I looked this info up, and its a match of a very good site, and I wrote this from listening to the History Channel, I missed many facts etc, so I don't really have 1/3 of what I heard.