Many people might critics the story. Well, it is fictional. The true story of Dracula or Vlad III or The Lord Impaler is a lot darker. Lucky that Dracula was killed, it was peace.
In Turki's history, Sultan Al-Fateh fights Dracula to conquer The Konstatinopel (I hope I spell it right). Sultan Al-Fateh have to stop Dracula before he killed more innocent people.
I don't know a lot about Dracula but all I know is that he called as a vampire because he's eating while sitting next to the flesh of human that he killed. The human was cut to pieces. Very cruel and he is very brave indeed.
And because of his actions, many people on that time called him The Lord Impaler. In present, many people called him as a vampire instead, not The Lord Impaler anymore.
Dracula Untold is a good story. But don't take the story too seriously. It's fictional and fantasy.