Its a bit long, I will have to watch some other time but his father was called Dracul because he was leader of a Sect of Christian Knights who called themselves "Dragons" or Dracul . Vlad was nicknamed Dracula, the diminutive of Dracul .
His most famous act was to impale 10,000 Muslim prisoners in front of an advancing Muslim Army . To impale someone a greased stake was inserted in the anus and if done correctly, it would only take out one lung and sit in your rib cage, taking days to die . He was imprisoned for some years by his leader and was a bit mental after that, enjoying eating in front of the dying, which some say totalled 100,000 in his lifetime .
Christians heard about him through Muslim Universities, strangely enough, as the devil himself . In his native country Romania he is celebrated to this day as a great hero and saviour of his people .
Bram Stoker probably got the idea from a Muslim and wrote his famous novel based on the true story .
Fact is stranger than fiction, and a neighbouring noble family were the Frankensteins , so Dracula versus Frankenstein has some truth to it as the families did clash, the German Frankensteins were trying to protect Saxon tradesmen in Transylvania, one of Draculas favourite spots for raiding .