Actually I read the orginal version of the novel not so long ago and there aren't any references to Vlad Tepes at all. I'm guessing you must have read one of those later editions meant for kids/young adults or something because I recall reading one too that also took some liberties with the plot.
Perhaps you need to learn to read.
An excerpt from chapter 18 Mina Harker's journal
"Thus when we find the habitation of this man-that-was, we can confine him to his coffin and destroy him, if we obey what we know. But he is clever. I have asked my friend Arminius, of Buda-Pesth University, to make his record, and from all the means that are, he tell me of what he has been. He must, indeed, have been that
Voivode Dracula who won his name against the Turk, over the great river on the very frontier of Turkeyland. If it be so, then was he no common man, for in that time, and for centuries after, he was spoken of as the cleverest and the most cunning, as well as the bravest of the sons of the 'land beyond the forest.' And an excerpt from Chapter 25 of Bram Stokers Dracula. And that would be in Dr. Seward's Dairy
"The Count is a criminal and of criminal type. Nordau and Lombroso would so classify him, and qua criminal
he is of an imperfectly formed mind. Thus, in a difficulty he has to seek resource in habit.
His past is a clue,and the one page of it that we know, and that from his own lips, tells that once before, when in what Mr.Morris would call a 'tight place,' he went back to his own country from the land he had tried to invade, and thence, without losing purpose, prepared himself for a new effort. He came again better equipped for his work, and won. So he came to London to invade a new land. He was beaten, and when all hope of success was lost, and his existence in danger, he fled back over the sea to his home. Just as formerly he had fled back over the Danube from Turkey Land."
So I would say those are good for starters references. I'll read over the book once more and add to that. Perhaps next time you should take your time, I know its a big book but you shouldn't rush through it for the sake of saying you read it.
And also that was taken directly from the 1897 edition.
EDIT: Also to note the reason he used "Land Beyond the Forest" was because of Emily Gerard's publication of The Land Beyond the Forest: Facts, Figures, and Fancies from
Transylvania,. It was published in 1888 a few years before Bram's novel.
And I also noticed it makes more sense if I place my excerpts in proper order that and it was buggin out my ocd.