a word about origin of Dracula...

Dracula has always been a frightening idea thanks to Bram Stoker's novel.
Most authorities believe the character of Dracula in Bram Stoker’s novel was based upon the historical figure Vlad Tepes (pronounced tse-pesh), who intermittently ruled an area of the Balkans called Wallachia in the mid 15th century. He was also called by the names Vlad III, Vlad Dracula and Vlad the Impaler. The word Tepes stands for "impaler" and was so coined because of Vlad’s propensity to punish victims by impaling them on stakes, then displaying them publicly to frighten his enemies and to warn would-be transgressors of his strict moral code. He is credited with killing between 40,000 to 100,000 people in this fashion.

King Sigismund of Hungary, who became the Holy Roman Emperor in 1410, founded a secret fraternal order of knights called the Order of the Dragon to uphold Christianity and defend the Empire against the Ottoman Turks. Its emblem was a dragon, wings extended, hanging on a cross. Vlad III’s father (Vlad II) was admitted to the Order around 1431 because of his bravery in fighting the Turks. From 1431 onward Vlad II wore the emblem of the order and later, as ruler of Wallachia, his coinage bore the dragon symbol.

The word for dragon in Romanian is "drac" and "ul" is the definitive article. Vlad III’s father thus came to be known as "Vlad Dracul," or "Vlad the dragon." In Romanian the ending "ulea" means "the son of". Under this interpretation, Vlad III thus became Vlad Dracula, or "the son of the dragon." (The word "drac" also means "devil" in Romanian. The sobriquet thus took on a double meaning for enemies of Vlad Tepes and his father.)

Bram Stoker probably found Vlad III to be devilish enough to base his idea of vampire upon Dracula!It is certainly no coincidence that Bram Stoker chose the Balkans as the home of his famous vampire. The Balkans were still basically medieval even in Stoker’s time. They had only recently shaken off the Turkish yoke when Stoker started working on his novel and the superstitions of the Dark Ages were still prevalent.

If you want to read in detail check this link out:
http://www.donlinke.com/drakula/vlad.htm

I also recommend reading The Historian by Elizabeth Kostova.