Romania was the birthplace of the legend of Dracula. It originated from a guy name Vlad Ţepeş who was a voidvode (prince) of Wallachia (one of the regions that Romania now consists of, the other is Moldavia). He was also know as Vlad III, dracula (son of the dragon or devil) after his father Vlad II dracul (dragon obviously...).
One fun fact about Romania is that Dracula's Castle is there.
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Be sure that Dracula is only a legend (created by Bram Stoker) and the Dracula's castle don't exist !