 In the scene before while entering the vampire club with the  Bloodpack, a large neon sign can be seen on top of a building that  says in large red letters "Radoo". In the history of Vlad the  Impaler (who the legend of Dracula is largely based) history talks  of his brother Radu. This name is also often associated with vampire  movies as it is deeply ingrained in the Dracula story.